157251103 has 4 divisors (see below), whose sum is σ = 157310008. Its totient is φ = 157192200.

The previous prime is 157251091. The next prime is 157251109. The reversal of 157251103 is 301152751.

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-157251103 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 (157251109) 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, 25248 + ... + 30853.

It is an arithmetic number, because the mean of its divisors is an integer number (39327502).

Almost surely, 2^157251103 is an apocalyptic number.

157251103 is a deficient number, since it is larger than the sum of its proper divisors (58905).

157251103 is an equidigital number, since it uses as much as digits as its factorization.

157251103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58904.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 157251103 is about 12539.9801833974. The cubic root of 157251103 is about 539.7565237537.

The spelling of 157251103 in words is "one hundred fifty-seven million, two hundred fifty-one thousand, one hundred three".