1427706225 has 81 divisors (see below), whose sum is σ = 2823112929. Its totient is φ = 689198400.

The previous prime is 1427706179. The next prime is 1427706277. The reversal of 1427706225 is 5226077241.

It is a happy number.

The square root of 1427706225 is 37785.

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

1427706225 is a `hidden beast` number, since 1 + 4 + 27 + 7 + 0 + 622 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 194853681 + 1232852544 = 13959^2 + 35112^2 .

It is not a de Polignac number, because 1427706225 - 2¹¹ = 1427704177 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1427706225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 6234411 + ... + 6234639.

Almost surely, 2^1427706225 is an apocalyptic number.

1427706225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1427706225 is the 37785-th square number.

1427706225 is the 18893-rd centered octagonal number.

It is an amenable number.

1427706225 is a deficient number, since it is larger than the sum of its proper divisors (1395406704).

1427706225 is a wasteful number, since it uses less digits than its factorization.

1427706225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The cubic root of 1427706225 is about 1126.0204666663.

Multiplying 1427706225 by its sum of digits (36), we get a square (51397424100 = 226710²).

The spelling of 1427706225 in words is "one billion, four hundred twenty-seven million, seven hundred six thousand, two hundred twenty-five".