157828143 has 8 divisors (see below), whose sum is σ = 229568256. Its totient is φ = 95653400.

The previous prime is 157828133. The next prime is 157828163. The reversal of 157828143 is 341828751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157828143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157828123) 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, 2391303 + ... + 2391368.

It is an arithmetic number, because the mean of its divisors is an integer number (28696032).

Almost surely, 2^157828143 is an apocalyptic number.

157828143 is a deficient number, since it is larger than the sum of its proper divisors (71740113).

157828143 is a wasteful number, since it uses less digits than its factorization.

157828143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782685.

The product of its digits is 53760, while the sum is 39.

The square root of 157828143 is about 12562.9671256435. The cubic root of 157828143 is about 540.4159381124.

The spelling of 157828143 in words is "one hundred fifty-seven million, eight hundred twenty-eight thousand, one hundred forty-three".