157158849173 has 4 divisors (see below), whose sum is σ = 158213606700. Its totient is φ = 156104091648.

The previous prime is 157158849161. The next prime is 157158849191. The reversal of 157158849173 is 371948851751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 371948851751 = 107 ⋅3476157493.

It can be written as a sum of positive squares in 2 ways, for example, as 80189779684 + 76969069489 = 283178^2 + 277433^2 .

It is a cyclic number.

It is not a de Polignac number, because 157158849173 - 2⁴ = 157158849157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157158849103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527378540 + ... + 527378837.

It is an arithmetic number, because the mean of its divisors is an integer number (39553401675).

Almost surely, 2^157158849173 is an apocalyptic number.

It is an amenable number.

157158849173 is a deficient number, since it is larger than the sum of its proper divisors (1054757527).

157158849173 is a wasteful number, since it uses less digits than its factorization.

157158849173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054757526.

The product of its digits is 8467200, while the sum is 59.

The spelling of 157158849173 in words is "one hundred fifty-seven billion, one hundred fifty-eight million, eight hundred forty-nine thousand, one hundred seventy-three".