123802372 has 6 divisors (see below), whose sum is σ = 216654158. Its totient is φ = 61901184.

The previous prime is 123802339. The next prime is 123802373. The reversal of 123802372 is 273208321.

It can be written as a sum of positive squares in only one way, i.e., 80030916 + 43771456 = 8946^2 + 6616^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123802372.

It is not an unprimeable number, because it can be changed into a prime (123802373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15475293 + ... + 15475300.

Almost surely, 2^123802372 is an apocalyptic number.

It is an amenable number.

123802372 is a deficient number, since it is larger than the sum of its proper divisors (92851786).

123802372 is a wasteful number, since it uses less digits than its factorization.

123802372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30950597 (or 30950595 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 123802372 is about 11126.6514279904. The cubic root of 123802372 is about 498.3980355681.

The spelling of 123802372 in words is "one hundred twenty-three million, eight hundred two thousand, three hundred seventy-two".