123397952 has 14 divisors (see below), whose sum is σ = 244867938. Its totient is φ = 61698944.

The previous prime is 123397933. The next prime is 123397957. The reversal of 123397952 is 259793321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 111175936 + 12222016 = 10544^2 + 3496^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123397957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 963983 + ... + 964110.

It is an arithmetic number, because the mean of its divisors is an integer number (17490567).

Almost surely, 2^123397952 is an apocalyptic number.

It is an amenable number.

123397952 is a deficient number, since it is larger than the sum of its proper divisors (121469986).

123397952 is an equidigital number, since it uses as much as digits as its factorization.

123397952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928105 (or 1928095 counting only the distinct ones).

The product of its digits is 102060, while the sum is 41.

The square root of 123397952 is about 11108.4630800125. The cubic root of 123397952 is about 497.8547449250.

The spelling of 123397952 in words is "one hundred twenty-three million, three hundred ninety-seven thousand, nine hundred fifty-two".