615151161 has 12 divisors (see below), whose sum is σ = 919191780. Its totient is φ = 395959200.

The previous prime is 615151111. The next prime is 615151183. The reversal of 615151161 is 161151516.

615151161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 522991161 + 92160000 = 22869^2 + 9600^2 .

It is a de Polignac number, because none of the positive numbers 2^k-615151161 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (615151111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1178190 + ... + 1178711.

It is an arithmetic number, because the mean of its divisors is an integer number (76599315).

Almost surely, 2^615151161 is an apocalyptic number.

It is an amenable number.

615151161 is a deficient number, since it is larger than the sum of its proper divisors (304040619).

615151161 is a wasteful number, since it uses less digits than its factorization.

615151161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356936 (or 2356933 counting only the distinct ones).

The product of its digits is 900, while the sum is 27.

The square root of 615151161 is about 24802.2410479376. The cubic root of 615151161 is about 850.4731672349.

The spelling of 615151161 in words is "six hundred fifteen million, one hundred fifty-one thousand, one hundred sixty-one".