61140524 has 6 divisors (see below), whose sum is σ = 106995924. Its totient is φ = 30570260.

The previous prime is 61140523. The next prime is 61140623. The reversal of 61140524 is 42504116.

It is a self number, because there is not a number n which added to its sum of digits gives 61140524.

It is not an unprimeable number, because it can be changed into a prime (61140523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7642562 + ... + 7642569.

It is an arithmetic number, because the mean of its divisors is an integer number (17832654).

Almost surely, 2^61140524 is an apocalyptic number.

It is an amenable number.

61140524 is a deficient number, since it is larger than the sum of its proper divisors (45855400).

61140524 is a wasteful number, since it uses less digits than its factorization.

61140524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15285135 (or 15285133 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 61140524 is about 7819.2406280917. The cubic root of 61140524 is about 393.9517664507.

The spelling of 61140524 in words is "sixty-one million, one hundred forty thousand, five hundred twenty-four".