61457123 has 12 divisors (see below), whose sum is σ = 76991040. Its totient is φ = 48624912.

The previous prime is 61457117. The next prime is 61457147. The reversal of 61457123 is 32175416.

It is not a de Polignac number, because 61457123 - 2⁸ = 61456867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61447123) 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, 47603 + ... + 48876.

It is an arithmetic number, because the mean of its divisors is an integer number (6415920).

Almost surely, 2^61457123 is an apocalyptic number.

61457123 is a deficient number, since it is larger than the sum of its proper divisors (15533917).

61457123 is a wasteful number, since it uses less digits than its factorization.

61457123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96506 (or 96499 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 61457123 is about 7839.4593563587. The cubic root of 61457123 is about 394.6305855621.

The spelling of 61457123 in words is "sixty-one million, four hundred fifty-seven thousand, one hundred twenty-three".