157431443 has 12 divisors (see below), whose sum is σ = 171156240. Its totient is φ = 144739296.

The previous prime is 157431433. The next prime is 157431479. The reversal of 157431443 is 344134751.

It is not a de Polignac number, because 157431443 - 2¹⁰ = 157430419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157431403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43730 + ... + 47192.

It is an arithmetic number, because the mean of its divisors is an integer number (14263020).

Almost surely, 2^157431443 is an apocalyptic number.

157431443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

157431443 is a deficient number, since it is larger than the sum of its proper divisors (13724797).

157431443 is a wasteful number, since it uses less digits than its factorization.

157431443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3758 (or 3745 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 157431443 is about 12547.1687244573. The cubic root of 157431443 is about 539.9627809281.

The spelling of 157431443 in words is "one hundred fifty-seven million, four hundred thirty-one thousand, four hundred forty-three".