123265402 has 16 divisors (see below), whose sum is σ = 210834792. Its totient is φ = 53544960.

The previous prime is 123265397. The next prime is 123265409. The reversal of 123265402 is 204562321.

It can be written as a sum of positive squares in 4 ways, for example, as 104264521 + 19000881 = 10211^2 + 4359^2 .

It is not an unprimeable number, because it can be changed into a prime (123265409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138999 + ... + 139882.

Almost surely, 2^123265402 is an apocalyptic number.

123265402 is a deficient number, since it is larger than the sum of its proper divisors (87569390).

123265402 is a wasteful number, since it uses less digits than its factorization.

123265402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278913.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 123265402 is about 11102.4953051105. The cubic root of 123265402 is about 497.6764213580.

The spelling of 123265402 in words is "one hundred twenty-three million, two hundred sixty-five thousand, four hundred two".