61513116 has 24 divisors (see below), whose sum is σ = 164035200. Its totient is φ = 17575152.

The previous prime is 61513097. The next prime is 61513121. The reversal of 61513116 is 61131516.

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, 366066 + ... + 366233.

It is an arithmetic number, because the mean of its divisors is an integer number (6834800).

Almost surely, 2^61513116 is an apocalyptic number.

It is an amenable number.

61513116 is an abundant number, since it is smaller than the sum of its proper divisors (102522084).

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

61513116 is a wasteful number, since it uses less digits than its factorization.

61513116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732313 (or 732311 counting only the distinct ones).

The product of its digits is 540, while the sum is 24.

The square root of 61513116 is about 7843.0297717145. The cubic root of 61513116 is about 394.7503972402.

It can be divided in two parts, 615 and 13116, that added together give a palindrome (13731).

The spelling of 61513116 in words is "sixty-one million, five hundred thirteen thousand, one hundred sixteen".