157624745 has 8 divisors (see below), whose sum is σ = 189638280. Its totient is φ = 125774080.

The previous prime is 157624729. The next prime is 157624759. The reversal of 157624745 is 547426751.

It can be written as a sum of positive squares in 4 ways, for example, as 6310144 + 151314601 = 2512^2 + 12301^2 .

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

It is not a de Polignac number, because 157624745 - 2⁴ = 157624729 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38576 + ... + 42465.

It is an arithmetic number, because the mean of its divisors is an integer number (23704785).

Almost surely, 2^157624745 is an apocalyptic number.

It is an amenable number.

157624745 is a deficient number, since it is larger than the sum of its proper divisors (32013535).

157624745 is an equidigital number, since it uses as much as digits as its factorization.

157624745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81435.

The product of its digits is 235200, while the sum is 41.

The square root of 157624745 is about 12554.8693740716. The cubic root of 157624745 is about 540.1836880806.

The spelling of 157624745 in words is "one hundred fifty-seven million, six hundred twenty-four thousand, seven hundred forty-five".