70240351 has 2 divisors, whose sum is σ = 70240352. Its totient is φ = 70240350.

The previous prime is 70240343. The next prime is 70240361. The reversal of 70240351 is 15304207.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70240351 - 2³ = 70240343 is a prime.

It is a Chen prime.

It is equal to p_4131346 and since 70240351 and 4131346 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70240301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35120175 + 35120176.

It is an arithmetic number, because the mean of its divisors is an integer number (35120176).

Almost surely, 2^70240351 is an apocalyptic number.

70240351 is a deficient number, since it is larger than the sum of its proper divisors (1).

70240351 is an equidigital number, since it uses as much as digits as its factorization.

70240351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 70240351 is about 8380.9516762716. The cubic root of 70240351 is about 412.5996840200.

Adding to 70240351 its reverse (15304207), we get a palindrome (85544558).

The spelling of 70240351 in words is "seventy million, two hundred forty thousand, three hundred fifty-one".