61130275 has 6 divisors (see below), whose sum is σ = 75801572. Its totient is φ = 48904200.

The previous prime is 61130269. The next prime is 61130281. The reversal of 61130275 is 57203116.

It is an interprime number because it is at equal distance from previous prime (61130269) and next prime (61130281).

It is not a de Polignac number, because 61130275 - 2²¹ = 59033123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 2445211 = 61130275 / (6 + 1 + 1 + 3 + 0 + 2 + 7 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1222581 + ... + 1222630.

Almost surely, 2^61130275 is an apocalyptic number.

61130275 is a deficient number, since it is larger than the sum of its proper divisors (14671297).

61130275 is a wasteful number, since it uses less digits than its factorization.

61130275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445221 (or 2445216 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 61130275 is about 7818.5852300784. The cubic root of 61130275 is about 393.9297524791.

The spelling of 61130275 in words is "sixty-one million, one hundred thirty thousand, two hundred seventy-five".