157620103 has 4 divisors (see below), whose sum is σ = 157971600. Its totient is φ = 157268608.

The previous prime is 157620091. The next prime is 157620109. The reversal of 157620103 is 301026751.

157620103 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 a de Polignac number, because none of the positive numbers 2^k-157620103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157620109) 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, 175075 + ... + 175972.

It is an arithmetic number, because the mean of its divisors is an integer number (39492900).

Almost surely, 2^157620103 is an apocalyptic number.

157620103 is a deficient number, since it is larger than the sum of its proper divisors (351497).

157620103 is an equidigital number, since it uses as much as digits as its factorization.

157620103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351496.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 157620103 is about 12554.6845042000. The cubic root of 157620103 is about 540.1783852810.

Adding to 157620103 its reverse (301026751), we get a palindrome (458646854).

The spelling of 157620103 in words is "one hundred fifty-seven million, six hundred twenty thousand, one hundred three".