122561015 has 8 divisors (see below), whose sum is σ = 147169008. Its totient is φ = 97984960.

The previous prime is 122561009. The next prime is 122561027. The reversal of 122561015 is 510165221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122561015 - 2¹⁰ = 122559991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1484 + ... + 15726.

It is an arithmetic number, because the mean of its divisors is an integer number (18396126).

Almost surely, 2^122561015 is an apocalyptic number.

122561015 is a deficient number, since it is larger than the sum of its proper divisors (24607993).

122561015 is a wasteful number, since it uses less digits than its factorization.

122561015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15969.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 122561015 is about 11070.7278441844. The cubic root of 122561015 is about 496.7266369538.

The spelling of 122561015 in words is "one hundred twenty-two million, five hundred sixty-one thousand, fifteen".