122015161 has 4 divisors (see below), whose sum is σ = 127320192. Its totient is φ = 116710132.

The previous prime is 122015141. The next prime is 122015183. The reversal of 122015161 is 161510221.

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 a cyclic number.

It is not a de Polignac number, because 122015161 - 2⁵ = 122015129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122015141) 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, 2652481 + ... + 2652526.

It is an arithmetic number, because the mean of its divisors is an integer number (31830048).

Almost surely, 2^122015161 is an apocalyptic number.

It is an amenable number.

122015161 is a deficient number, since it is larger than the sum of its proper divisors (5305031).

122015161 is an equidigital number, since it uses as much as digits as its factorization.

122015161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5305030.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 122015161 is about 11046.0473020896. The cubic root of 122015161 is about 495.9881102444.

Adding to 122015161 its reverse (161510221), we get a palindrome (283525382).

The spelling of 122015161 in words is "one hundred twenty-two million, fifteen thousand, one hundred sixty-one".