157723343 has 4 divisors (see below), whose sum is σ = 160396680. Its totient is φ = 155050008.

The previous prime is 157723337. The next prime is 157723361. The reversal of 157723343 is 343327751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157723343 - 2²² = 153529039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157723303) 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, 1336580 + ... + 1336697.

It is an arithmetic number, because the mean of its divisors is an integer number (40099170).

Almost surely, 2^157723343 is an apocalyptic number.

157723343 is a deficient number, since it is larger than the sum of its proper divisors (2673337).

157723343 is an equidigital number, since it uses as much as digits as its factorization.

157723343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673336.

The product of its digits is 52920, while the sum is 35.

The square root of 157723343 is about 12558.7954438314. The cubic root of 157723343 is about 540.2962971547.

The spelling of 157723343 in words is "one hundred fifty-seven million, seven hundred twenty-three thousand, three hundred forty-three".