157985343 has 8 divisors (see below), whose sum is σ = 234052400. Its totient is φ = 105323544.

The previous prime is 157985339. The next prime is 157985351. The reversal of 157985343 is 343589751.

It is not a de Polignac number, because 157985343 - 2² = 157985339 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 (157985383) 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, 2925628 + ... + 2925681.

It is an arithmetic number, because the mean of its divisors is an integer number (29256550).

Almost surely, 2^157985343 is an apocalyptic number.

157985343 is a deficient number, since it is larger than the sum of its proper divisors (76067057).

157985343 is an equidigital number, since it uses as much as digits as its factorization.

157985343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851318 (or 5851312 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 157985343 is about 12569.2220522990. Note that the first 3 decimals coincide. The cubic root of 157985343 is about 540.5953002852.

The spelling of 157985343 in words is "one hundred fifty-seven million, nine hundred eighty-five thousand, three hundred forty-three".