61361157 has 24 divisors (see below), whose sum is σ = 96853792. Its totient is φ = 34325280.

The previous prime is 61361149. The next prime is 61361161. The reversal of 61361157 is 75116316.

It is not a de Polignac number, because 61361157 - 2³ = 61361149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61361137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1783 + ... + 11220.

Almost surely, 2^61361157 is an apocalyptic number.

It is an amenable number.

61361157 is a deficient number, since it is larger than the sum of its proper divisors (35492635).

61361157 is a wasteful number, since it uses less digits than its factorization.

61361157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13041 (or 13030 counting only the distinct ones).

The product of its digits is 3780, while the sum is 30.

The square root of 61361157 is about 7833.3362624108. The cubic root of 61361157 is about 394.4250718310.

The spelling of 61361157 in words is "sixty-one million, three hundred sixty-one thousand, one hundred fifty-seven".