70842313 has 2 divisors, whose sum is σ = 70842314. Its totient is φ = 70842312.

The previous prime is 70842271. The next prime is 70842319. The reversal of 70842313 is 31324807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48260809 + 22581504 = 6947^2 + 4752^2 .

It is an emirp because it is prime and its reverse (31324807) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70842313 is a prime.

It is a super-2 number, since 2×70842313² = 10037266622379938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70842319) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35421156 + 35421157.

It is an arithmetic number, because the mean of its divisors is an integer number (35421157).

Almost surely, 2^70842313 is an apocalyptic number.

It is an amenable number.

70842313 is a deficient number, since it is larger than the sum of its proper divisors (1).

70842313 is an equidigital number, since it uses as much as digits as its factorization.

70842313 is an odious number, because the sum of its binary digits is odd.

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

The square root of 70842313 is about 8416.7875700887. The cubic root of 70842313 is about 413.7749969533.

The spelling of 70842313 in words is "seventy million, eight hundred forty-two thousand, three hundred thirteen".