124905897 has 12 divisors (see below), whose sum is σ = 181841920. Its totient is φ = 82614168.

The previous prime is 124905863. The next prime is 124905917. The reversal of 124905897 is 798509421.

It is not a de Polignac number, because 124905897 - 2¹⁰ = 124904873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124905097) 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, 53497 + ... + 55782.

Almost surely, 2^124905897 is an apocalyptic number.

It is an amenable number.

124905897 is a deficient number, since it is larger than the sum of its proper divisors (56936023).

124905897 is a wasteful number, since it uses less digits than its factorization.

124905897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109412 (or 109409 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 124905897 is about 11176.1306810542. The cubic root of 124905897 is about 499.8744978344.

The spelling of 124905897 in words is "one hundred twenty-four million, nine hundred five thousand, eight hundred ninety-seven".