61971102 has 16 divisors (see below), whose sum is σ = 137713680. Its totient is φ = 20657016.

The previous prime is 61971097. The next prime is 61971149. The reversal of 61971102 is 20117916.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573753 + ... + 573860.

It is an arithmetic number, because the mean of its divisors is an integer number (8607105).

Almost surely, 2^61971102 is an apocalyptic number.

61971102 is an abundant number, since it is smaller than the sum of its proper divisors (75742578).

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

61971102 is a wasteful number, since it uses less digits than its factorization.

61971102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147624 (or 1147618 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 61971102 is about 7872.1726353022. The cubic root of 61971102 is about 395.7276593948.

The spelling of 61971102 in words is "sixty-one million, nine hundred seventy-one thousand, one hundred two".