123552140 has 48 divisors (see below), whose sum is σ = 264515328. Its totient is φ = 48467904.

The previous prime is 123552131. The next prime is 123552157. The reversal of 123552140 is 41255321.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 436439 + ... + 436721.

It is an arithmetic number, because the mean of its divisors is an integer number (5510736).

Almost surely, 2^123552140 is an apocalyptic number.

123552140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123552140 is an abundant number, since it is smaller than the sum of its proper divisors (140963188).

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

123552140 is a wasteful number, since it uses less digits than its factorization.

123552140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 123552140 is about 11115.4010274034. The cubic root of 123552140 is about 498.0620181576.

The spelling of 123552140 in words is "one hundred twenty-three million, five hundred fifty-two thousand, one hundred forty".