157933445 has 4 divisors (see below), whose sum is σ = 189520140. Its totient is φ = 126346752.

The previous prime is 157933441. The next prime is 157933459. The reversal of 157933445 is 544339751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31730689 + 126202756 = 5633^2 + 11234^2 .

It is a cyclic number.

It is not a de Polignac number, because 157933445 - 2² = 157933441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157933441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15793340 + ... + 15793349.

It is an arithmetic number, because the mean of its divisors is an integer number (47380035).

Almost surely, 2^157933445 is an apocalyptic number.

It is an amenable number.

157933445 is a deficient number, since it is larger than the sum of its proper divisors (31586695).

157933445 is an equidigital number, since it uses as much as digits as its factorization.

157933445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31586694.

The product of its digits is 226800, while the sum is 41.

The square root of 157933445 is about 12567.1573953699. The cubic root of 157933445 is about 540.5360988280.

The spelling of 157933445 in words is "one hundred fifty-seven million, nine hundred thirty-three thousand, four hundred forty-five".