61207975 has 12 divisors (see below), whose sum is σ = 76220320. Its totient is φ = 48758400.

The previous prime is 61207961. The next prime is 61207999. The reversal of 61207975 is 57970216.

It is not a de Polignac number, because 61207975 - 2¹¹ = 61205927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 946 + ... + 11104.

Almost surely, 2^61207975 is an apocalyptic number.

61207975 is a deficient number, since it is larger than the sum of its proper divisors (15012345).

61207975 is a wasteful number, since it uses less digits than its factorization.

61207975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10410 (or 10405 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 61207975 is about 7823.5525817879. The cubic root of 61207975 is about 394.0965840673.

The spelling of 61207975 in words is "sixty-one million, two hundred seven thousand, nine hundred seventy-five".