123505264 has 20 divisors (see below), whose sum is σ = 243808056. Its totient is φ = 60587072.

The previous prime is 123505247. The next prime is 123505267. The reversal of 123505264 is 462505321.

123505264 = T₅₇ + T₅₈ + ... + T₉₀₄.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123505267) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 71974 + ... + 73669.

Almost surely, 2^123505264 is an apocalyptic number.

It is an amenable number.

123505264 is a deficient number, since it is larger than the sum of its proper divisors (120302792).

123505264 is a wasteful number, since it uses less digits than its factorization.

123505264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145704 (or 145698 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 123505264 is about 11113.2922214796. The cubic root of 123505264 is about 497.9990215192. Note that the first 3 decimals are identical.

The spelling of 123505264 in words is "one hundred twenty-three million, five hundred five thousand, two hundred sixty-four".