615161001 has 32 divisors (see below), whose sum is σ = 1036795648. Its totient is φ = 315705600.

The previous prime is 615160991. The next prime is 615161009. The reversal of 615161001 is 100161516.

It is not a de Polignac number, because 615161001 - 2⁷ = 615160873 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (615161009) 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, 20350 + ... + 40551.

It is an arithmetic number, because the mean of its divisors is an integer number (32399864).

Almost surely, 2^615161001 is an apocalyptic number.

It is an amenable number.

615161001 is a deficient number, since it is larger than the sum of its proper divisors (421634647).

615161001 is a wasteful number, since it uses less digits than its factorization.

615161001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60961.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 615161001 is about 24802.4394163155. The cubic root of 615161001 is about 850.4777019530.

It can be divided in two parts, 61516 and 1001, that multiplied together give a palindrome (61577516).

The spelling of 615161001 in words is "six hundred fifteen million, one hundred sixty-one thousand, one".