70131 has 8 divisors (see below), whose sum is σ = 94864. Its totient is φ = 46080.

The previous prime is 70123. The next prime is 70139. The reversal of 70131 is 13107.

It is an interprime number because it is at equal distance from previous prime (70123) and next prime (70139).

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

It is not a de Polignac number, because 70131 - 2³ = 70123 is a prime.

It is a super-2 number, since 2×70131² = 9836714322, which contains 22 as substring.

It is a Duffinian number.

70131 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 70131.

It is not an unprimeable number, because it can be changed into a prime (70139) 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, 171 + ... + 411.

It is an arithmetic number, because the mean of its divisors is an integer number (11858).

2⁷⁰¹³¹ is an apocalyptic number.

70131 is a deficient number, since it is larger than the sum of its proper divisors (24733).

70131 is a wasteful number, since it uses less digits than its factorization.

70131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341.

The product of its (nonzero) digits is 21, while the sum is 12.

The square root of 70131 is about 264.8225821187. The cubic root of 70131 is about 41.2385459474.

Adding to 70131 its reverse (13107), we get a palindrome (83238).

The spelling of 70131 in words is "seventy thousand, one hundred thirty-one".