157830443 has 4 divisors (see below), whose sum is σ = 161680008. Its totient is φ = 153980880.

The previous prime is 157830433. The next prime is 157830467. The reversal of 157830443 is 344038751.

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 157830443 - 2¹⁶ = 157764907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157830433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1924721 + ... + 1924802.

It is an arithmetic number, because the mean of its divisors is an integer number (40420002).

Almost surely, 2^157830443 is an apocalyptic number.

157830443 is a deficient number, since it is larger than the sum of its proper divisors (3849565).

157830443 is an equidigital number, since it uses as much as digits as its factorization.

157830443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3849564.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 157830443 is about 12563.0586641948. The cubic root of 157830443 is about 540.4185632264.

The spelling of 157830443 in words is "one hundred fifty-seven million, eight hundred thirty thousand, four hundred forty-three".