127615161 has 4 divisors (see below), whose sum is σ = 170153552. Its totient is φ = 85076772.

The previous prime is 127615157. The next prime is 127615181. The reversal of 127615161 is 161516721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 127615161 - 2² = 127615157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127615151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21269191 + ... + 21269196.

It is an arithmetic number, because the mean of its divisors is an integer number (42538388).

Almost surely, 2^127615161 is an apocalyptic number.

It is an amenable number.

127615161 is a deficient number, since it is larger than the sum of its proper divisors (42538391).

127615161 is an equidigital number, since it uses as much as digits as its factorization.

127615161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42538390.

The product of its digits is 2520, while the sum is 30.

The square root of 127615161 is about 11296.6880544698. The cubic root of 127615161 is about 503.4628433993.

The spelling of 127615161 in words is "one hundred twenty-seven million, six hundred fifteen thousand, one hundred sixty-one".