157043443 has 2 divisors, whose sum is σ = 157043444. Its totient is φ = 157043442.

The previous prime is 157043441. The next prime is 157043449. The reversal of 157043443 is 344340751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157043443 - 2¹ = 157043441 is a prime.

Together with 157043441, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (157043441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78521721 + 78521722.

It is an arithmetic number, because the mean of its divisors is an integer number (78521722).

Almost surely, 2^157043443 is an apocalyptic number.

157043443 is a deficient number, since it is larger than the sum of its proper divisors (1).

157043443 is an equidigital number, since it uses as much as digits as its factorization.

157043443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 157043443 is about 12531.6975306620. The cubic root of 157043443 is about 539.5188249127.

The spelling of 157043443 in words is "one hundred fifty-seven million, forty-three thousand, four hundred forty-three".