70248331 has 2 divisors, whose sum is σ = 70248332. Its totient is φ = 70248330.

The previous prime is 70248329. The next prime is 70248337. The reversal of 70248331 is 13384207.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70248331 - 2¹ = 70248329 is a prime.

It is a super-2 number, since 2×70248331² = 9869656016571122, which contains 22 as substring.

Together with 70248329, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 70248331.

It is not a weakly prime, because it can be changed into another prime (70248337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35124165 + 35124166.

It is an arithmetic number, because the mean of its divisors is an integer number (35124166).

Almost surely, 2^70248331 is an apocalyptic number.

70248331 is a deficient number, since it is larger than the sum of its proper divisors (1).

70248331 is an equidigital number, since it uses as much as digits as its factorization.

70248331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 70248331 is about 8381.4277423360. The cubic root of 70248331 is about 412.6153085661.

The spelling of 70248331 in words is "seventy million, two hundred forty-eight thousand, three hundred thirty-one".