123547880 has 32 divisors (see below), whose sum is σ = 292615200. Its totient is φ = 46817856.

The previous prime is 123547877. The next prime is 123547889. The reversal of 123547880 is 88745321.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (123547889) 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, 80522 + ... + 82041.

It is an arithmetic number, because the mean of its divisors is an integer number (9144225).

Almost surely, 2^123547880 is an apocalyptic number.

123547880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123547880 is an abundant number, since it is smaller than the sum of its proper divisors (169067320).

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

123547880 is a wasteful number, since it uses less digits than its factorization.

123547880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162593 (or 162589 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 123547880 is about 11115.2093997369. The cubic root of 123547880 is about 498.0562938035.

The spelling of 123547880 in words is "one hundred twenty-three million, five hundred forty-seven thousand, eight hundred eighty".