157883645 has 8 divisors (see below), whose sum is σ = 189554904. Its totient is φ = 126243904.

The previous prime is 157883611. The next prime is 157883647. The reversal of 157883645 is 546388751.

It can be written as a sum of positive squares in 4 ways, for example, as 3602404 + 154281241 = 1898^2 + 12421^2 .

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 157883645 - 2¹² = 157879549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157883645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157883647) 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, 5087 + ... + 18483.

It is an arithmetic number, because the mean of its divisors is an integer number (23694363).

Almost surely, 2^157883645 is an apocalyptic number.

It is an amenable number.

157883645 is a deficient number, since it is larger than the sum of its proper divisors (31671259).

157883645 is a wasteful number, since it uses less digits than its factorization.

157883645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15759.

The product of its digits is 806400, while the sum is 47.

The square root of 157883645 is about 12565.1758841649. The cubic root of 157883645 is about 540.4792784217.

The spelling of 157883645 in words is "one hundred fifty-seven million, eight hundred eighty-three thousand, six hundred forty-five".