121162015 has 12 divisors (see below), whose sum is σ = 157440024. Its totient is φ = 89472864.

The previous prime is 121161979. The next prime is 121162037. The reversal of 121162015 is 510261121.

It is not a de Polignac number, because 121162015 - 2¹¹ = 121159967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121161983 and 121162001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70849 + ... + 72538.

It is an arithmetic number, because the mean of its divisors is an integer number (13120002).

Almost surely, 2^121162015 is an apocalyptic number.

121162015 is a deficient number, since it is larger than the sum of its proper divisors (36278009).

121162015 is a wasteful number, since it uses less digits than its factorization.

121162015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143418 (or 143405 counting only the distinct ones).

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

The square root of 121162015 is about 11007.3618546862. The cubic root of 121162015 is about 494.8294007896.

The spelling of 121162015 in words is "one hundred twenty-one million, one hundred sixty-two thousand, fifteen".