157029493273 has 2 divisors, whose sum is σ = 157029493274. Its totient is φ = 157029493272.

The previous prime is 157029493237. The next prime is 157029493321. The reversal of 157029493273 is 372394920751.

Together with previous prime (157029493237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155163512464 + 1865980809 = 393908^2 + 43197^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157029493273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157029493273.

It is not a weakly prime, because it can be changed into another prime (157029493373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78514746636 + 78514746637.

It is an arithmetic number, because the mean of its divisors is an integer number (78514746637).

Almost surely, 2^157029493273 is an apocalyptic number.

It is an amenable number.

157029493273 is a deficient number, since it is larger than the sum of its proper divisors (1).

157029493273 is an equidigital number, since it uses as much as digits as its factorization.

157029493273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2857680, while the sum is 52.

The spelling of 157029493273 in words is "one hundred fifty-seven billion, twenty-nine million, four hundred ninety-three thousand, two hundred seventy-three".