157673543 has 4 divisors (see below), whose sum is σ = 158259960. Its totient is φ = 157087128.

The previous prime is 157673531. The next prime is 157673563. The reversal of 157673543 is 345376751.

It is a happy number.

157673543 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: 345376751 = 3037 ⋅113723.

It is a cyclic number.

It is not a de Polignac number, because 157673543 - 2⁸ = 157673287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157673543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157673513) 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, 292805 + ... + 293342.

It is an arithmetic number, because the mean of its divisors is an integer number (39564990).

Almost surely, 2^157673543 is an apocalyptic number.

157673543 is a deficient number, since it is larger than the sum of its proper divisors (586417).

157673543 is an equidigital number, since it uses as much as digits as its factorization.

157673543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586416.

The product of its digits is 264600, while the sum is 41.

The square root of 157673543 is about 12556.8126130798. The cubic root of 157673543 is about 540.2394262916.

The spelling of 157673543 in words is "one hundred fifty-seven million, six hundred seventy-three thousand, five hundred forty-three".