124704891 has 12 divisors (see below), whose sum is σ = 180293568. Its totient is φ = 83060784.

The previous prime is 124704887. The next prime is 124704893. The reversal of 124704891 is 198407421.

It is not a de Polignac number, because 124704891 - 2² = 124704887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124704893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5206 + ... + 16628.

It is an arithmetic number, because the mean of its divisors is an integer number (15024464).

Almost surely, 2^124704891 is an apocalyptic number.

124704891 is a deficient number, since it is larger than the sum of its proper divisors (55588677).

124704891 is a wasteful number, since it uses less digits than its factorization.

124704891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12642 (or 12639 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 124704891 is about 11167.1344130892. The cubic root of 124704891 is about 499.6062112756.

The spelling of 124704891 in words is "one hundred twenty-four million, seven hundred four thousand, eight hundred ninety-one".