123315764 has 24 divisors (see below), whose sum is σ = 253531488. Its totient is φ = 51740640.

The previous prime is 123315749. The next prime is 123315767. The reversal of 123315764 is 467513321.

It is a self number, because there is not a number n which added to its sum of digits gives 123315764.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123315767) 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, 107222 + ... + 108365.

It is an arithmetic number, because the mean of its divisors is an integer number (10563812).

Almost surely, 2^123315764 is an apocalyptic number.

It is an amenable number.

123315764 is an abundant number, since it is smaller than the sum of its proper divisors (130215724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123315764 is a wasteful number, since it uses less digits than its factorization.

123315764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215615 (or 215613 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 123315764 is about 11104.7631221922. The cubic root of 123315764 is about 497.7441899475.

The spelling of 123315764 in words is "one hundred twenty-three million, three hundred fifteen thousand, seven hundred sixty-four".