124900978 has 4 divisors (see below), whose sum is σ = 187351470. Its totient is φ = 62450488.

The previous prime is 124900969. The next prime is 124900981. The reversal of 124900978 is 879009421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 879009421 = 5101 ⋅172321.

It can be written as a sum of positive squares in only one way, i.e., 109558089 + 15342889 = 10467^2 + 3917^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 124900978.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31225243 + ... + 31225246.

Almost surely, 2^124900978 is an apocalyptic number.

124900978 is a deficient number, since it is larger than the sum of its proper divisors (62450492).

124900978 is an equidigital number, since it uses as much as digits as its factorization.

124900978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62450491.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 124900978 is about 11175.9106116683. The cubic root of 124900978 is about 499.8679357878.

The spelling of 124900978 in words is "one hundred twenty-four million, nine hundred thousand, nine hundred seventy-eight".