61152156 has 72 divisors (see below), whose sum is σ = 170583504. Its totient is φ = 18351360.

The previous prime is 61152139. The next prime is 61152199. The reversal of 61152156 is 65125116.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17595 + ... + 20781.

Almost surely, 2^61152156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61152156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85291752).

61152156 is an abundant number, since it is smaller than the sum of its proper divisors (109431348).

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

61152156 is a wasteful number, since it uses less digits than its factorization.

61152156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251 (or 3246 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 61152156 is about 7819.9843989614. The cubic root of 61152156 is about 393.9767480072.

The spelling of 61152156 in words is "sixty-one million, one hundred fifty-two thousand, one hundred fifty-six".