157243037 has 8 divisors (see below), whose sum is σ = 182389056. Its totient is φ = 132767712.

The previous prime is 157243033. The next prime is 157243043. The reversal of 157243037 is 730342751.

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

It is not a de Polignac number, because 157243037 - 2² = 157243033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157242994 and 157243012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157243033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167168 + ... + 168105.

It is an arithmetic number, because the mean of its divisors is an integer number (22798632).

Almost surely, 2^157243037 is an apocalyptic number.

It is an amenable number.

157243037 is a deficient number, since it is larger than the sum of its proper divisors (25146019).

157243037 is an equidigital number, since it uses as much as digits as its factorization.

157243037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335347.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 157243037 is about 12539.6585679196. The cubic root of 157243037 is about 539.7472948824.

Adding to 157243037 its reverse (730342751), we get a palindrome (887585788).

The spelling of 157243037 in words is "one hundred fifty-seven million, two hundred forty-three thousand, thirty-seven".