157445305 has 24 divisors (see below), whose sum is σ = 202288320. Its totient is φ = 117313920.

The previous prime is 157445303. The next prime is 157445339. The reversal of 157445305 is 503544751.

157445305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157445305 - 2¹ = 157445303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157445303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 506100 + ... + 506410.

It is an arithmetic number, because the mean of its divisors is an integer number (8428680).

Almost surely, 2^157445305 is an apocalyptic number.

It is an amenable number.

157445305 is a deficient number, since it is larger than the sum of its proper divisors (44843015).

157445305 is an equidigital number, since it uses as much as digits as its factorization.

157445305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 157445305 is about 12547.7211078347. The cubic root of 157445305 is about 539.9786285552.

The spelling of 157445305 in words is "one hundred fifty-seven million, four hundred forty-five thousand, three hundred five".