70998131 has 8 divisors (see below), whose sum is σ = 71831760. Its totient is φ = 70168032.

The previous prime is 70998089. The next prime is 70998133. The reversal of 70998131 is 13189907.

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 70998131 - 2²² = 66803827 is a prime.

It is a super-2 number, since 2×70998131² = 10081469210986322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70998133) 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, 69581 + ... + 70593.

It is an arithmetic number, because the mean of its divisors is an integer number (8978970).

Almost surely, 2^70998131 is an apocalyptic number.

70998131 is a deficient number, since it is larger than the sum of its proper divisors (833629).

70998131 is a wasteful number, since it uses less digits than its factorization.

70998131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 70998131 is about 8426.0388677005. The cubic root of 70998131 is about 414.0781414886.

The spelling of 70998131 in words is "seventy million, nine hundred ninety-eight thousand, one hundred thirty-one".