157943723 has 8 divisors (see below), whose sum is σ = 183201792. Its totient is φ = 133359336.

The previous prime is 157943683. The next prime is 157943759. The reversal of 157943723 is 327349751.

157943723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157943723 - 2¹² = 157939627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157940723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167915 + ... + 168852.

It is an arithmetic number, because the mean of its divisors is an integer number (22900224).

Almost surely, 2^157943723 is an apocalyptic number.

157943723 is a deficient number, since it is larger than the sum of its proper divisors (25258069).

157943723 is an equidigital number, since it uses as much as digits as its factorization.

157943723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336841.

The product of its digits is 158760, while the sum is 41.

The square root of 157943723 is about 12567.5663117407. The cubic root of 157943723 is about 540.5478242514.

The spelling of 157943723 in words is "one hundred fifty-seven million, nine hundred forty-three thousand, seven hundred twenty-three".