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1345001 = 7227449
BaseRepresentation
bin101001000010111101001
32112022222212
411020113221
5321020001
644454505
714301200
oct5102751
92468885
101345001
11839579
1254a435
13381278
14270237
151b87bb
hex1485e9

1345001 has 6 divisors (see below), whose sum is σ = 1564650. Its totient is φ = 1152816.

The previous prime is 1344979. The next prime is 1345009. The reversal of 1345001 is 1005431.

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 90601 = 1120^2 + 301^2 .

It is not a de Polignac number, because 1345001 - 214 = 1328617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1345009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13676 + ... + 13773.

It is an arithmetic number, because the mean of its divisors is an integer number (260775).

21345001 is an apocalyptic number.

It is an amenable number.

1345001 is a deficient number, since it is larger than the sum of its proper divisors (219649).

1345001 is an equidigital number, since it uses as much as digits as its factorization.

1345001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27463 (or 27456 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1345001 is about 1159.7417816049. The cubic root of 1345001 is about 110.3843579060.

The spelling of 1345001 in words is "one million, three hundred forty-five thousand, one".

Divisors: 1 7 49 27449 192143 1345001