61130975 has 12 divisors (see below), whose sum is σ = 76315800. Its totient is φ = 48573600.

The previous prime is 61130969. The next prime is 61130989. The reversal of 61130975 is 57903116.

It is not a de Polignac number, because 61130975 - 2¹⁰ = 61129951 is a prime.

It is a super-2 number, since 2×61130975² = 7473992208901250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4481 + ... + 11930.

It is an arithmetic number, because the mean of its divisors is an integer number (6359650).

Almost surely, 2^61130975 is an apocalyptic number.

61130975 is a deficient number, since it is larger than the sum of its proper divisors (15184825).

61130975 is a wasteful number, since it uses less digits than its factorization.

61130975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16570 (or 16565 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 61130975 is about 7818.6299950823. The cubic root of 61130975 is about 393.9312560972.

The spelling of 61130975 in words is "sixty-one million, one hundred thirty thousand, nine hundred seventy-five".