61369152 has 112 divisors (see below), whose sum is σ = 182636160. Its totient is φ = 18044928.

The previous prime is 61369141. The next prime is 61369211. The reversal of 61369152 is 25196316.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56874 + ... + 57942.

It is an arithmetic number, because the mean of its divisors is an integer number (1630680).

Almost surely, 2^61369152 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 61369152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91318080).

61369152 is an abundant number, since it is smaller than the sum of its proper divisors (121267008).

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

61369152 is a wasteful number, since it uses less digits than its factorization.

61369152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120 (or 1110 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 61369152 is about 7833.8465647471. The cubic root of 61369152 is about 394.4422015140.

The spelling of 61369152 in words is "sixty-one million, three hundred sixty-nine thousand, one hundred fifty-two".