61041915 has 48 divisors (see below), whose sum is σ = 116453376. Its totient is φ = 29332800.

The previous prime is 61041913. The next prime is 61041941. The reversal of 61041915 is 51914016.

61041915 is a `hidden beast` number, since 610 + 41 + 9 + 1 + 5 = 666.

It is not a de Polignac number, because 61041915 - 2¹ = 61041913 is a prime.

It is a super-2 number, since 2×61041915² = 7452230773734450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61041913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62380 + ... + 63350.

It is an arithmetic number, because the mean of its divisors is an integer number (2426112).

Almost surely, 2^61041915 is an apocalyptic number.

61041915 is a deficient number, since it is larger than the sum of its proper divisors (55411461).

61041915 is a wasteful number, since it uses less digits than its factorization.

61041915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 61041915 is about 7812.9325480257. The cubic root of 61041915 is about 393.7398606611.

The spelling of 61041915 in words is "sixty-one million, forty-one thousand, nine hundred fifteen".