70130431 has 4 divisors (see below), whose sum is σ = 80149072. Its totient is φ = 60111792.

The previous prime is 70130413. The next prime is 70130449. The reversal of 70130431 is 13403107.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (70130413) and next prime (70130449).

It is a cyclic number.

It is not a de Polignac number, because 70130431 - 2⁷ = 70130303 is a prime.

It is a super-2 number, since 2×70130431² = 9836554704491522, 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 = 70130399 and 70130408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70130531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5009310 + ... + 5009323.

It is an arithmetic number, because the mean of its divisors is an integer number (20037268).

Almost surely, 2^70130431 is an apocalyptic number.

70130431 is a deficient number, since it is larger than the sum of its proper divisors (10018641).

70130431 is a wasteful number, since it uses less digits than its factorization.

70130431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10018640.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 70130431 is about 8374.3913808706. The cubic root of 70130431 is about 412.3843441903.

Adding to 70130431 its reverse (13403107), we get a palindrome (83533538).

The spelling of 70130431 in words is "seventy million, one hundred thirty thousand, four hundred thirty-one".