61112415 has 32 divisors (see below), whose sum is σ = 120347136. Its totient is φ = 25787520.

The previous prime is 61112413. The next prime is 61112431. The reversal of 61112415 is 51421116.

It is not a de Polignac number, because 61112415 - 2¹ = 61112413 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 61112391 and 61112400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61112411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21021 + ... + 23750.

It is an arithmetic number, because the mean of its divisors is an integer number (3760848).

Almost surely, 2^61112415 is an apocalyptic number.

61112415 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61112415 is a deficient number, since it is larger than the sum of its proper divisors (59234721).

61112415 is a wasteful number, since it uses less digits than its factorization.

61112415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44799.

The product of its digits is 240, while the sum is 21.

The square root of 61112415 is about 7817.4429962744. The cubic root of 61112415 is about 393.8913848526.

The spelling of 61112415 in words is "sixty-one million, one hundred twelve thousand, four hundred fifteen".