157594489 has 8 divisors (see below), whose sum is σ = 171275720. Its totient is φ = 144135936.

The previous prime is 157594477. The next prime is 157594499. The reversal of 157594489 is 984495751.

It can be written as a sum of positive squares in 4 ways, for example, as 30085225 + 127509264 = 5485^2 + 11292^2 .

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 157594489 - 2¹⁹ = 157070201 is a prime.

It is a super-2 number, since 2×157594489² = 49672045926342242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157594499) 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, 54192 + ... + 57025.

It is an arithmetic number, because the mean of its divisors is an integer number (21409465).

Almost surely, 2^157594489 is an apocalyptic number.

It is an amenable number.

157594489 is a deficient number, since it is larger than the sum of its proper divisors (13681231).

157594489 is a wasteful number, since it uses less digits than its factorization.

157594489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111339.

The product of its digits is 1814400, while the sum is 52.

The square root of 157594489 is about 12553.6643654353. The cubic root of 157594489 is about 540.1491231957.

The spelling of 157594489 in words is "one hundred fifty-seven million, five hundred ninety-four thousand, four hundred eighty-nine".