157803843 has 32 divisors (see below), whose sum is σ = 230169600. Its totient is φ = 95786496.

The previous prime is 157803803. The next prime is 157803847. The reversal of 157803843 is 348308751.

It is a Cunningham number, because it is equal to 12562²-1.

It is not a de Polignac number, because 157803843 - 2¹⁶ = 157738307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157803847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213168 + ... + 213906.

It is an arithmetic number, because the mean of its divisors is an integer number (7192800).

Almost surely, 2^157803843 is an apocalyptic number.

157803843 is a deficient number, since it is larger than the sum of its proper divisors (72365757).

157803843 is a wasteful number, since it uses less digits than its factorization.

157803843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 157803843 is about 12561.9999601974. Note that the first 4 decimals coincide. The cubic root of 157803843 is about 540.3882016537.

The spelling of 157803843 in words is "one hundred fifty-seven million, eight hundred three thousand, eight hundred forty-three".