70075231 has 4 divisors (see below), whose sum is σ = 70092000. Its totient is φ = 70058464.

The previous prime is 70075219. The next prime is 70075253. The reversal of 70075231 is 13257007.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 70075231 - 2¹⁵ = 70042463 is a prime.

It is a super-2 number, since 2×70075231² = 9821075999406722, 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 = 70075196 and 70075205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70075331) 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, 3495 + ... + 12343.

It is an arithmetic number, because the mean of its divisors is an integer number (17523000).

Almost surely, 2^70075231 is an apocalyptic number.

70075231 is a deficient number, since it is larger than the sum of its proper divisors (16769).

70075231 is an equidigital number, since it uses as much as digits as its factorization.

70075231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16768.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 70075231 is about 8371.0949701936. The cubic root of 70075231 is about 412.2761192228.

The spelling of 70075231 in words is "seventy million, seventy-five thousand, two hundred thirty-one".