61575315 has 16 divisors (see below), whose sum is σ = 99299328. Its totient is φ = 32580576.

The previous prime is 61575313. The next prime is 61575329. The reversal of 61575315 is 51357516.

61575315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61575315 - 2¹ = 61575313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61575313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14257 + ... + 18066.

It is an arithmetic number, because the mean of its divisors is an integer number (6206208).

Almost surely, 2^61575315 is an apocalyptic number.

61575315 is a deficient number, since it is larger than the sum of its proper divisors (37724013).

61575315 is a wasteful number, since it uses less digits than its factorization.

61575315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32458.

The product of its digits is 15750, while the sum is 33.

The square root of 61575315 is about 7846.9940104476. The cubic root of 61575315 is about 394.8834030694.

The spelling of 61575315 in words is "sixty-one million, five hundred seventy-five thousand, three hundred fifteen".