124691140 has 48 divisors (see below), whose sum is σ = 301658112. Its totient is φ = 42408576.

The previous prime is 124691117. The next prime is 124691153. The reversal of 124691140 is 41196421.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 124691099 and 124691108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14274 + ... + 21286.

It is an arithmetic number, because the mean of its divisors is an integer number (6284544).

Almost surely, 2^124691140 is an apocalyptic number.

124691140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124691140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150829056).

124691140 is an abundant number, since it is smaller than the sum of its proper divisors (176966972).

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

124691140 is a wasteful number, since it uses less digits than its factorization.

124691140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7156 (or 7154 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 124691140 is about 11166.5187054874. The cubic root of 124691140 is about 499.5878470199.

The spelling of 124691140 in words is "one hundred twenty-four million, six hundred ninety-one thousand, one hundred forty".