70302231 has 6 divisors (see below), whose sum is σ = 101547680. Its totient is φ = 46868148.

The previous prime is 70302227. The next prime is 70302233. The reversal of 70302231 is 13220307.

It is not a de Polignac number, because 70302231 - 2² = 70302227 is a prime.

It is a super-2 number, since 2×70302231² = 9884807367154722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70302233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3905671 + ... + 3905688.

Almost surely, 2^70302231 is an apocalyptic number.

70302231 is a deficient number, since it is larger than the sum of its proper divisors (31245449).

70302231 is a wasteful number, since it uses less digits than its factorization.

70302231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7811365 (or 7811362 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 70302231 is about 8384.6425684104. The cubic root of 70302231 is about 412.7208118056.

Adding to 70302231 its reverse (13220307), we get a palindrome (83522538).

It can be divided in two parts, 7030 and 2231, that added together give a cube (9261 = 21³).

The spelling of 70302231 in words is "seventy million, three hundred two thousand, two hundred thirty-one".