124771985 has 16 divisors (see below), whose sum is σ = 161493696. Its totient is φ = 91996608.

The previous prime is 124771967. The next prime is 124772041. The reversal of 124771985 is 589177421.

It is a cyclic number.

It is not a de Polignac number, because 124771985 - 2⁸ = 124771729 is a prime.

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, 60542 + ... + 62568.

It is an arithmetic number, because the mean of its divisors is an integer number (10093356).

Almost surely, 2^124771985 is an apocalyptic number.

It is an amenable number.

124771985 is a deficient number, since it is larger than the sum of its proper divisors (36721711).

124771985 is a wasteful number, since it uses less digits than its factorization.

124771985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992.

The product of its digits is 141120, while the sum is 44.

The square root of 124771985 is about 11170.1380922529. The cubic root of 124771985 is about 499.6957949561.

The spelling of 124771985 in words is "one hundred twenty-four million, seven hundred seventy-one thousand, nine hundred eighty-five".