61134815 has 16 divisors (see below), whose sum is σ = 84188160. Its totient is φ = 41748000.

The previous prime is 61134809. The next prime is 61134817. The reversal of 61134815 is 51843116.

It is not a de Polignac number, because 61134815 - 2⁶ = 61134751 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61134817) 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, 5306 + ... + 12264.

It is an arithmetic number, because the mean of its divisors is an integer number (5261760).

Almost surely, 2^61134815 is an apocalyptic number.

61134815 is a deficient number, since it is larger than the sum of its proper divisors (23053345).

61134815 is a wasteful number, since it uses less digits than its factorization.

61134815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7222.

The product of its digits is 2880, while the sum is 29.

The square root of 61134815 is about 7818.8755585442. The cubic root of 61134815 is about 393.9395043126.

The spelling of 61134815 in words is "sixty-one million, one hundred thirty-four thousand, eight hundred fifteen".