70085131 has 8 divisors (see below), whose sum is σ = 72129024. Its totient is φ = 68064360.

The previous prime is 70085089. The next prime is 70085143. The reversal of 70085131 is 13158007.

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 70085131 - 2¹³ = 70076939 is a prime.

It is a super-2 number, since 2×70085131² = 9823851174574322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70085096 and 70085105.

It is not an unprimeable number, because it can be changed into a prime (70085161) 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, 466 + ... + 11848.

It is an arithmetic number, because the mean of its divisors is an integer number (9016128).

Almost surely, 2^70085131 is an apocalyptic number.

70085131 is a deficient number, since it is larger than the sum of its proper divisors (2043893).

70085131 is a wasteful number, since it uses less digits than its factorization.

70085131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11561.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 70085131 is about 8371.6862698025. The cubic root of 70085131 is about 412.2955333169.

The spelling of 70085131 in words is "seventy million, eighty-five thousand, one hundred thirty-one".