157315743173 has 2 divisors, whose sum is σ = 157315743174. Its totient is φ = 157315743172.

The previous prime is 157315743119. The next prime is 157315743209. The reversal of 157315743173 is 371347513751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88302876964 + 69012866209 = 297158^2 + 262703^2 .

It is an emirp because it is prime and its reverse (371347513751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157315743173 - 2¹⁶ = 157315677637 is a prime.

It is a super-2 number, since 2×157315743173² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157315743073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78657871586 + 78657871587.

It is an arithmetic number, because the mean of its divisors is an integer number (78657871587).

Almost surely, 2^157315743173 is an apocalyptic number.

It is an amenable number.

157315743173 is a deficient number, since it is larger than the sum of its proper divisors (1).

157315743173 is an equidigital number, since it uses as much as digits as its factorization.

157315743173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 926100, while the sum is 47.

The spelling of 157315743173 in words is "one hundred fifty-seven billion, three hundred fifteen million, seven hundred forty-three thousand, one hundred seventy-three".