70357249 has 2 divisors, whose sum is σ = 70357250. Its totient is φ = 70357248.

The previous prime is 70357241. The next prime is 70357279. The reversal of 70357249 is 94275307.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64320400 + 6036849 = 8020^2 + 2457^2 .

It is a cyclic number.

It is not a de Polignac number, because 70357249 - 2³ = 70357241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70357241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35178624 + 35178625.

It is an arithmetic number, because the mean of its divisors is an integer number (35178625).

Almost surely, 2^70357249 is an apocalyptic number.

It is an amenable number.

70357249 is a deficient number, since it is larger than the sum of its proper divisors (1).

70357249 is an equidigital number, since it uses as much as digits as its factorization.

70357249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 70357249 is about 8387.9228060349. The cubic root of 70357249 is about 412.8284478053.

The spelling of 70357249 in words is "seventy million, three hundred fifty-seven thousand, two hundred forty-nine".