70122649 has 2 divisors, whose sum is σ = 70122650. Its totient is φ = 70122648.

The previous prime is 70122629. The next prime is 70122677. The reversal of 70122649 is 94622107.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70023424 + 99225 = 8368^2 + 315^2 .

It is a cyclic number.

It is not a de Polignac number, because 70122649 - 2⁵ = 70122617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70122649.

It is not a weakly prime, because it can be changed into another prime (70122629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35061324 + 35061325.

It is an arithmetic number, because the mean of its divisors is an integer number (35061325).

Almost surely, 2^70122649 is an apocalyptic number.

It is an amenable number.

70122649 is a deficient number, since it is larger than the sum of its proper divisors (1).

70122649 is an equidigital number, since it uses as much as digits as its factorization.

70122649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 70122649 is about 8373.9267372004. The cubic root of 70122649 is about 412.3690902622.

The spelling of 70122649 in words is "seventy million, one hundred twenty-two thousand, six hundred forty-nine".