157538873 has 4 divisors (see below), whose sum is σ = 157628148. Its totient is φ = 157449600.

The previous prime is 157538867. The next prime is 157538879. The reversal of 157538873 is 378835751.

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

It is an interprime number because it is at equal distance from previous prime (157538867) and next prime (157538879).

It can be written as a sum of positive squares in 2 ways, for example, as 82664464 + 74874409 = 9092^2 + 8653^2 .

It is a cyclic number.

It is not a de Polignac number, because 157538873 - 2⁸ = 157538617 is a prime.

It is a super-2 number, since 2×157538873² = 49636993012220258, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157538879) 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, 41936 + ... + 45537.

It is an arithmetic number, because the mean of its divisors is an integer number (39407037).

Almost surely, 2^157538873 is an apocalyptic number.

It is an amenable number.

157538873 is a deficient number, since it is larger than the sum of its proper divisors (89275).

157538873 is an equidigital number, since it uses as much as digits as its factorization.

157538873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89274.

The product of its digits is 705600, while the sum is 47.

The square root of 157538873 is about 12551.4490398519. The cubic root of 157538873 is about 540.0855751440.

The spelling of 157538873 in words is "one hundred fifty-seven million, five hundred thirty-eight thousand, eight hundred seventy-three".