157973843 has 16 divisors (see below), whose sum is σ = 170216640. Its totient is φ = 146082816.

The previous prime is 157973833. The next prime is 157973863. The reversal of 157973843 is 348379751.

It is a cyclic number.

It is not a de Polignac number, because 157973843 - 2¹⁰ = 157972819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157973833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397721 + ... + 398117.

It is an arithmetic number, because the mean of its divisors is an integer number (10638540).

Almost surely, 2^157973843 is an apocalyptic number.

157973843 is a deficient number, since it is larger than the sum of its proper divisors (12242797).

157973843 is a wasteful number, since it uses less digits than its factorization.

157973843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766.

The product of its digits is 635040, while the sum is 47.

The square root of 157973843 is about 12568.7645773163. The cubic root of 157973843 is about 540.5821830414.

The spelling of 157973843 in words is "one hundred fifty-seven million, nine hundred seventy-three thousand, eight hundred forty-three".