70137289 has 2 divisors, whose sum is σ = 70137290. Its totient is φ = 70137288.

The previous prime is 70137271. The next prime is 70137293. The reversal of 70137289 is 98273107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40106889 + 30030400 = 6333^2 + 5480^2 .

It is a cyclic number.

It is not a de Polignac number, because 70137289 - 2¹⁷ = 70006217 is a prime.

It is not a weakly prime, because it can be changed into another prime (70137259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35068644 + 35068645.

It is an arithmetic number, because the mean of its divisors is an integer number (35068645).

Almost surely, 2^70137289 is an apocalyptic number.

It is an amenable number.

70137289 is a deficient number, since it is larger than the sum of its proper divisors (1).

70137289 is an equidigital number, since it uses as much as digits as its factorization.

70137289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 70137289 is about 8374.8008334527. The cubic root of 70137289 is about 412.3977859997.

The spelling of 70137289 in words is "seventy million, one hundred thirty-seven thousand, two hundred eighty-nine".