61862157 has 96 divisors (see below), whose sum is σ = 118195200. Its totient is φ = 31733856.

The previous prime is 61862131. The next prime is 61862159. The reversal of 61862157 is 75126816.

It is not a de Polignac number, because 61862157 - 2⁶ = 61862093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61862159) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 578098 + ... + 578204.

It is an arithmetic number, because the mean of its divisors is an integer number (1231200).

Almost surely, 2^61862157 is an apocalyptic number.

61862157 is the 3933-rd decagonal number.

It is an amenable number.

61862157 is a deficient number, since it is larger than the sum of its proper divisors (56333043).

61862157 is a wasteful number, since it uses less digits than its factorization.

61862157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 159 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 61862157 is about 7865.2499642414. The cubic root of 61862157 is about 395.4956273827.

The spelling of 61862157 in words is "sixty-one million, eight hundred sixty-two thousand, one hundred fifty-seven".