61302612 has 48 divisors (see below), whose sum is σ = 173093760. Its totient is φ = 16484352.

The previous prime is 61302587. The next prime is 61302641. The reversal of 61302612 is 21620316.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20037 + ... + 22892.

It is an arithmetic number, because the mean of its divisors is an integer number (3606120).

Almost surely, 2^61302612 is an apocalyptic number.

It is an amenable number.

61302612 is an abundant number, since it is smaller than the sum of its proper divisors (111791148).

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

61302612 is a wasteful number, since it uses less digits than its factorization.

61302612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42960 (or 42958 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 61302612 is about 7829.5984571369. The cubic root of 61302612 is about 394.2995909090.

Adding to 61302612 its reverse (21620316), we get a palindrome (82922928).

The spelling of 61302612 in words is "sixty-one million, three hundred two thousand, six hundred twelve".