61540092 has 36 divisors (see below), whose sum is σ = 156996840. Its totient is φ = 20323872.

The previous prime is 61540081. The next prime is 61540093. The reversal of 61540092 is 29004516.

61540092 is a `hidden beast` number, since 615 + 40 + 0 + 9 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61540093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3918 + ... + 11765.

Almost surely, 2^61540092 is an apocalyptic number.

It is an amenable number.

61540092 is an abundant number, since it is smaller than the sum of its proper divisors (95456748).

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

61540092 is a wasteful number, since it uses less digits than its factorization.

61540092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15802 (or 15797 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 61540092 is about 7844.7493267790. The cubic root of 61540092 is about 394.8080935016.

The spelling of 61540092 in words is "sixty-one million, five hundred forty thousand, ninety-two".