61872118 has 32 divisors (see below), whose sum is σ = 116121600. Its totient is φ = 24020160.

The previous prime is 61872067. The next prime is 61872119. The reversal of 61872118 is 81127816.

It is a super-3 number, since 3×61872118³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61872119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58458 + ... + 59506.

It is an arithmetic number, because the mean of its divisors is an integer number (3628800).

Almost surely, 2^61872118 is an apocalyptic number.

61872118 is a deficient number, since it is larger than the sum of its proper divisors (54249482).

61872118 is a wasteful number, since it uses less digits than its factorization.

61872118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452.

The product of its digits is 5376, while the sum is 34.

The square root of 61872118 is about 7865.8831671974. The cubic root of 61872118 is about 395.5168537172.

The spelling of 61872118 in words is "sixty-one million, eight hundred seventy-two thousand, one hundred eighteen".