70121115 has 24 divisors (see below), whose sum is σ = 127941840. Its totient is φ = 35429184.

The previous prime is 70121083. The next prime is 70121123. The reversal of 70121115 is 51112107.

It is a happy number.

It is not a de Polignac number, because 70121115 - 2⁵ = 70121083 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40152 + ... + 41861.

It is an arithmetic number, because the mean of its divisors is an integer number (5330910).

Almost surely, 2^70121115 is an apocalyptic number.

70121115 is a deficient number, since it is larger than the sum of its proper divisors (57820725).

70121115 is a wasteful number, since it uses less digits than its factorization.

70121115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82043 (or 82040 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 18.

The square root of 70121115 is about 8373.8351428721. The cubic root of 70121115 is about 412.3660832508.

The spelling of 70121115 in words is "seventy million, one hundred twenty-one thousand, one hundred fifteen".