61565148 has 36 divisors (see below), whose sum is σ = 155887368. Its totient is φ = 20486880.

The previous prime is 61565117. The next prime is 61565201. The reversal of 61565148 is 84156516.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 28515 + ... + 30597.

Almost surely, 2^61565148 is an apocalyptic number.

It is an amenable number.

61565148 is an abundant number, since it is smaller than the sum of its proper divisors (94322220).

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

61565148 is a wasteful number, since it uses less digits than its factorization.

61565148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914 (or 2909 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 61565148 is about 7846.3461560143. The cubic root of 61565148 is about 394.8616681661.

The spelling of 61565148 in words is "sixty-one million, five hundred sixty-five thousand, one hundred forty-eight".