61130964 has 24 divisors (see below), whose sum is σ = 148841280. Its totient is φ = 19490944.

The previous prime is 61130947. The next prime is 61130969. The reversal of 61130964 is 46903116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61130969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110469 + ... + 111020.

It is an arithmetic number, because the mean of its divisors is an integer number (6201720).

Almost surely, 2^61130964 is an apocalyptic number.

It is an amenable number.

61130964 is an abundant number, since it is smaller than the sum of its proper divisors (87710316).

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

61130964 is a wasteful number, since it uses less digits than its factorization.

61130964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221519 (or 221517 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 61130964 is about 7818.6292916342. The cubic root of 61130964 is about 393.9312324690.

The spelling of 61130964 in words is "sixty-one million, one hundred thirty thousand, nine hundred sixty-four".