61158872 has 16 divisors (see below), whose sum is σ = 120708600. Its totient is φ = 28969920.

The previous prime is 61158871. The next prime is 61158887. The reversal of 61158872 is 27885116.

It is a super-3 number, since 3×61158872³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61158871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201029 + ... + 201332.

Almost surely, 2^61158872 is an apocalyptic number.

It is an amenable number.

61158872 is a deficient number, since it is larger than the sum of its proper divisors (59549728).

61158872 is a wasteful number, since it uses less digits than its factorization.

61158872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402386 (or 402382 counting only the distinct ones).

The product of its digits is 26880, while the sum is 38.

The square root of 61158872 is about 7820.4137997935. The cubic root of 61158872 is about 393.9911702351.

The spelling of 61158872 in words is "sixty-one million, one hundred fifty-eight thousand, eight hundred seventy-two".