61500118 has 16 divisors (see below), whose sum is σ = 98005680. Its totient is φ = 28843776.

The previous prime is 61500113. The next prime is 61500149. The reversal of 61500118 is 81100516.

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 7 ways as a sum of consecutive naturals, for example, 7753 + ... + 13531.

It is an arithmetic number, because the mean of its divisors is an integer number (6125355).

Almost surely, 2^61500118 is an apocalyptic number.

61500118 is a deficient number, since it is larger than the sum of its proper divisors (36505562).

61500118 is a wasteful number, since it uses less digits than its factorization.

61500118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6111.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 61500118 is about 7842.2010940807. The cubic root of 61500118 is about 394.7225910994.

The spelling of 61500118 in words is "sixty-one million, five hundred thousand, one hundred eighteen".