157115443 has 4 divisors (see below), whose sum is σ = 159691168. Its totient is φ = 154539720.

The previous prime is 157115429. The next prime is 157115467. The reversal of 157115443 is 344511751.

157115443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344511751 = 331 ⋅1040821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157115443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157115423) 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, 1287771 + ... + 1287892.

It is an arithmetic number, because the mean of its divisors is an integer number (39922792).

Almost surely, 2^157115443 is an apocalyptic number.

157115443 is a deficient number, since it is larger than the sum of its proper divisors (2575725).

157115443 is an equidigital number, since it uses as much as digits as its factorization.

157115443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575724.

The product of its digits is 8400, while the sum is 31.

The square root of 157115443 is about 12534.5699168340. The cubic root of 157115443 is about 539.6012637158.

It can be divided in two parts, 157 and 115443, that added together give a square (115600 = 340²).

The spelling of 157115443 in words is "one hundred fifty-seven million, one hundred fifteen thousand, four hundred forty-three".