70133947 has 16 divisors (see below), whose sum is σ = 77128128. Its totient is φ = 63383040.

The previous prime is 70133933. The next prime is 70133953. The reversal of 70133947 is 74933107.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70133947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70133927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249447 + ... + 249727.

It is an arithmetic number, because the mean of its divisors is an integer number (4820508).

Almost surely, 2^70133947 is an apocalyptic number.

70133947 is the 6838-th pentagonal number.

70133947 is a deficient number, since it is larger than the sum of its proper divisors (6994181).

70133947 is a wasteful number, since it uses less digits than its factorization.

70133947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 70133947 is about 8374.6013039428. The cubic root of 70133947 is about 412.3912357261.

The spelling of 70133947 in words is "seventy million, one hundred thirty-three thousand, nine hundred forty-seven".