157157203 has 4 divisors (see below), whose sum is σ = 179608240. Its totient is φ = 134706168.

The previous prime is 157157201. The next prime is 157157207. The reversal of 157157203 is 302751751.

157157203 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, and also an emirpimes, since its reverse is a distinct semiprime: 302751751 = 109 ⋅2777539.

It is a cyclic number.

It is not a de Polignac number, because 157157203 - 2¹ = 157157201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157157201) 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, 11225508 + ... + 11225521.

It is an arithmetic number, because the mean of its divisors is an integer number (44902060).

Almost surely, 2^157157203 is an apocalyptic number.

157157203 is a deficient number, since it is larger than the sum of its proper divisors (22451037).

157157203 is an equidigital number, since it uses as much as digits as its factorization.

157157203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22451036.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 157157203 is about 12536.2355992539. The cubic root of 157157203 is about 539.6490666820.

The spelling of 157157203 in words is "one hundred fifty-seven million, one hundred fifty-seven thousand, two hundred three".