123401152 has 28 divisors (see below), whose sum is σ = 279857200. Its totient is φ = 52886016.

The previous prime is 123401149. The next prime is 123401153. The reversal of 123401152 is 251104321.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123401153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137277 + ... + 138172.

It is an arithmetic number, because the mean of its divisors is an integer number (9994900).

Almost surely, 2^123401152 is an apocalyptic number.

It is an amenable number.

123401152 is an abundant number, since it is smaller than the sum of its proper divisors (156456048).

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

123401152 is an equidigital number, since it uses as much as digits as its factorization.

123401152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275468 (or 275458 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 123401152 is about 11108.6071134054. The cubic root of 123401152 is about 497.8590484038.

Adding to 123401152 its reverse (251104321), we get a palindrome (374505473).

The spelling of 123401152 in words is "one hundred twenty-three million, four hundred one thousand, one hundred fifty-two".