70147057 has 8 divisors (see below), whose sum is σ = 71604000. Its totient is φ = 68702304.

The previous prime is 70147043. The next prime is 70147073. The reversal of 70147057 is 75074107.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70147057 is a prime.

It is a super-2 number, since 2×70147057² = 9841219211522498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70147657) 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, 9069 + ... + 14917.

It is an arithmetic number, because the mean of its divisors is an integer number (8950500).

Almost surely, 2^70147057 is an apocalyptic number.

It is an amenable number.

70147057 is a deficient number, since it is larger than the sum of its proper divisors (1456943).

70147057 is a wasteful number, since it uses less digits than its factorization.

70147057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6095.

The product of its (nonzero) digits is 6860, while the sum is 31.

The square root of 70147057 is about 8375.3839911971. The cubic root of 70147057 is about 412.4169299512.

The spelling of 70147057 in words is "seventy million, one hundred forty-seven thousand, fifty-seven".