157145983 has 8 divisors (see below), whose sum is σ = 163281600. Its totient is φ = 151058208.

The previous prime is 157145939. The next prime is 157146013. The reversal of 157145983 is 389541751.

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

It is a cyclic number.

It is not a de Polignac number, because 157145983 - 2¹⁷ = 157014911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157145783) 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, 5191 + ... + 18472.

It is an arithmetic number, because the mean of its divisors is an integer number (20410200).

Almost surely, 2^157145983 is an apocalyptic number.

157145983 is a deficient number, since it is larger than the sum of its proper divisors (6135617).

157145983 is a wasteful number, since it uses less digits than its factorization.

157145983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23921.

The product of its digits is 151200, while the sum is 43.

The square root of 157145983 is about 12535.7880885088. The cubic root of 157145983 is about 539.6362239010.

The spelling of 157145983 in words is "one hundred fifty-seven million, one hundred forty-five thousand, nine hundred eighty-three".