61257112 has 32 divisors (see below), whose sum is σ = 134323200. Its totient is φ = 25641504.

The previous prime is 61257109. The next prime is 61257127. The reversal of 61257112 is 21175216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10312 + ... + 15127.

It is an arithmetic number, because the mean of its divisors is an integer number (4197600).

Almost surely, 2^61257112 is an apocalyptic number.

It is an amenable number.

61257112 is an abundant number, since it is smaller than the sum of its proper divisors (73066088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61257112 is a wasteful number, since it uses less digits than its factorization.

61257112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25495 (or 25491 counting only the distinct ones).

The product of its digits is 840, while the sum is 25.

The square root of 61257112 is about 7826.6922770734. The cubic root of 61257112 is about 394.2020144694.

The spelling of 61257112 in words is "sixty-one million, two hundred fifty-seven thousand, one hundred twelve".