124397870 has 16 divisors (see below), whose sum is σ = 224084448. Its totient is φ = 49721760.

The previous prime is 124397863. The next prime is 124397873. The reversal of 124397870 is 78793421.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124397873) 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, 12200 + ... + 19940.

It is an arithmetic number, because the mean of its divisors is an integer number (14005278).

Almost surely, 2^124397870 is an apocalyptic number.

124397870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124397870 is a deficient number, since it is larger than the sum of its proper divisors (99686578).

124397870 is a wasteful number, since it uses less digits than its factorization.

124397870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9355.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 124397870 is about 11153.3793085325. The cubic root of 124397870 is about 499.1958674349.

The spelling of 124397870 in words is "one hundred twenty-four million, three hundred ninety-seven thousand, eight hundred seventy".