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1974025 = 522812
BaseRepresentation
bin111100001111100001001
310201021212001
413201330021
51001132100
6110151001
722531114
oct7417411
93637761
101974025
111129129
127b2461
13541681
1439557b
1528ed6a
hex1e1f09

1974025 has 9 divisors (see below), whose sum is σ = 2456533. Its totient is φ = 1573600.

The previous prime is 1973999. The next prime is 1974029. The reversal of 1974025 is 5204791.

It is a happy number.

The square root of 1974025 is 1405.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2809 + 1971216 = 53^2 + 1404^2 .

It is not a de Polignac number, because 1974025 - 27 = 1973897 is a prime.

It is a Duffinian number.

1974025 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1973984 and 1974002.

It is not an unprimeable number, because it can be changed into a prime (1974029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6885 + ... + 7165.

21974025 is an apocalyptic number.

1974025 is the 1405-th square number.

1974025 is the 703-rd centered octagonal number.

It is an amenable number.

1974025 is a deficient number, since it is larger than the sum of its proper divisors (482508).

1974025 is an frugal number, since it uses more digits than its factorization.

1974025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The cubic root of 1974025 is about 125.4442856777. Note that the first 3 decimals are identical.

The spelling of 1974025 in words is "one million, nine hundred seventy-four thousand, twenty-five".

Divisors: 1 5 25 281 1405 7025 78961 394805 1974025