157390090289 has 2 divisors, whose sum is σ = 157390090290. Its totient is φ = 157390090288.

The previous prime is 157390090243. The next prime is 157390090327. The reversal of 157390090289 is 982090093751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79874064400 + 77516025889 = 282620^2 + 278417^2 .

It is a cyclic number.

It is not a de Polignac number, because 157390090289 - 2²⁰ = 157389041713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157390090289.

It is not a weakly prime, because it can be changed into another prime (157390090219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78695045144 + 78695045145.

It is an arithmetic number, because the mean of its divisors is an integer number (78695045145).

Almost surely, 2^157390090289 is an apocalyptic number.

It is an amenable number.

157390090289 is a deficient number, since it is larger than the sum of its proper divisors (1).

157390090289 is an equidigital number, since it uses as much as digits as its factorization.

157390090289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The spelling of 157390090289 in words is "one hundred fifty-seven billion, three hundred ninety million, ninety thousand, two hundred eighty-nine".