61500116 has 12 divisors (see below), whose sum is σ = 108248532. Its totient is φ = 30571968.

The previous prime is 61500113. The next prime is 61500149. The reversal of 61500116 is 61100516.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51552400 + 9947716 = 7180^2 + 3154^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61500113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43745 + ... + 45128.

It is an arithmetic number, because the mean of its divisors is an integer number (9020711).

Almost surely, 2^61500116 is an apocalyptic number.

It is an amenable number.

61500116 is a deficient number, since it is larger than the sum of its proper divisors (46748416).

61500116 is a wasteful number, since it uses less digits than its factorization.

61500116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89050 (or 89048 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 61500116 is about 7842.2009665654. The cubic root of 61500116 is about 394.7225868206.

It can be divided in two parts, 61500 and 116, that added together give a palindrome (61616).

The spelling of 61500116 in words is "sixty-one million, five hundred thousand, one hundred sixteen".