157708445 has 8 divisors (see below), whose sum is σ = 191377080. Its totient is φ = 124748800.

The previous prime is 157708433. The next prime is 157708459. The reversal of 157708445 is 544807751.

157708445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5654884 + 152053561 = 2378^2 + 12331^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-157708445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176756 + ... + 177645.

It is an arithmetic number, because the mean of its divisors is an integer number (23922135).

Almost surely, 2^157708445 is an apocalyptic number.

It is an amenable number.

157708445 is a deficient number, since it is larger than the sum of its proper divisors (33668635).

157708445 is an equidigital number, since it uses as much as digits as its factorization.

157708445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354495.

The product of its (nonzero) digits is 156800, while the sum is 41.

The square root of 157708445 is about 12558.2022996924. The cubic root of 157708445 is about 540.2792851142.

The spelling of 157708445 in words is "one hundred fifty-seven million, seven hundred eight thousand, four hundred forty-five".