157528134623 has 4 divisors (see below), whose sum is σ = 157528929168. Its totient is φ = 157527340080.

The previous prime is 157528134611. The next prime is 157528134697. The reversal of 157528134623 is 326431825751.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 326431825751 = 17 ⋅19201872103.

It is a cyclic number.

It is not a de Polignac number, because 157528134623 - 2⁶ = 157528134559 is a prime.

It is a super-2 number, since 2×157528134623² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157528134223) 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, 172790 + ... + 587292.

It is an arithmetic number, because the mean of its divisors is an integer number (39382232292).

Almost surely, 2^157528134623 is an apocalyptic number.

157528134623 is a deficient number, since it is larger than the sum of its proper divisors (794545).

157528134623 is an equidigital number, since it uses as much as digits as its factorization.

157528134623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794544.

The product of its digits is 1209600, while the sum is 47.

The spelling of 157528134623 in words is "one hundred fifty-seven billion, five hundred twenty-eight million, one hundred thirty-four thousand, six hundred twenty-three".