70012155 has 8 divisors (see below), whose sum is σ = 112019472. Its totient is φ = 37339808.

The previous prime is 70012139. The next prime is 70012157. The reversal of 70012155 is 55121007.

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

It is a cyclic number.

It is not a de Polignac number, because 70012155 - 2⁴ = 70012139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70012157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2333724 + ... + 2333753.

It is an arithmetic number, because the mean of its divisors is an integer number (14002434).

Almost surely, 2^70012155 is an apocalyptic number.

70012155 is a deficient number, since it is larger than the sum of its proper divisors (42007317).

70012155 is a wasteful number, since it uses less digits than its factorization.

70012155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4667485.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 70012155 is about 8367.3266339973. The cubic root of 70012155 is about 412.1523829921.

The spelling of 70012155 in words is "seventy million, twelve thousand, one hundred fifty-five".