124139480 has 32 divisors (see below), whose sum is σ = 279966240. Its totient is φ = 49539840.

The previous prime is 124139479. The next prime is 124139497. The reversal of 124139480 is 84931421.

It is a happy number.

It is a super-2 number, since 2×124139480² = 30821220989340800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14885 + ... + 21675.

It is an arithmetic number, because the mean of its divisors is an integer number (8748945).

Almost surely, 2^124139480 is an apocalyptic number.

124139480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124139480 is an abundant number, since it is smaller than the sum of its proper divisors (155826760).

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

124139480 is a wasteful number, since it uses less digits than its factorization.

124139480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7259 (or 7255 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 124139480 is about 11141.7898023612. The cubic root of 124139480 is about 498.8499970141.

The spelling of 124139480 in words is "one hundred twenty-four million, one hundred thirty-nine thousand, four hundred eighty".