70147212 has 12 divisors (see below), whose sum is σ = 163676856. Its totient is φ = 23382400.

The previous prime is 70147193. The next prime is 70147241. The reversal of 70147212 is 21274107.

It is a tau number, because it is divible by the number of its divisors (12).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2922789 + ... + 2922812.

It is an arithmetic number, because the mean of its divisors is an integer number (13639738).

Almost surely, 2^70147212 is an apocalyptic number.

It is an amenable number.

70147212 is an abundant number, since it is smaller than the sum of its proper divisors (93529644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70147212 is a wasteful number, since it uses less digits than its factorization.

70147212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5845608 (or 5845606 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 70147212 is about 8375.3932444990. The cubic root of 70147212 is about 412.4172337158.

The spelling of 70147212 in words is "seventy million, one hundred forty-seven thousand, two hundred twelve".