157231203 has 4 divisors (see below), whose sum is σ = 209641608. Its totient is φ = 104820800.

The previous prime is 157231199. The next prime is 157231211. The reversal of 157231203 is 302132751.

157231203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 157231203 - 2² = 157231199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157231103) 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, 26205198 + ... + 26205203.

It is an arithmetic number, because the mean of its divisors is an integer number (52410402).

Almost surely, 2^157231203 is an apocalyptic number.

157231203 is a deficient number, since it is larger than the sum of its proper divisors (52410405).

157231203 is an equidigital number, since it uses as much as digits as its factorization.

157231203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52410404.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 157231203 is about 12539.1866961139. The cubic root of 157231203 is about 539.7337542092.

Adding to 157231203 its reverse (302132751), we get a palindrome (459363954).

The spelling of 157231203 in words is "one hundred fifty-seven million, two hundred thirty-one thousand, two hundred three".