2731103157 has 4 divisors (see below), whose sum is σ = 3641470880. Its totient is φ = 1820735436.

The previous prime is 2731103153. The next prime is 2731103171. The reversal of 2731103157 is 7513011372.

2731103157 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2731103157 - 2² = 2731103153 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 (2731103153) 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, 455183857 + ... + 455183862.

It is an arithmetic number, because the mean of its divisors is an integer number (910367720).

Almost surely, 2^2731103157 is an apocalyptic number.

It is an amenable number.

2731103157 is a deficient number, since it is larger than the sum of its proper divisors (910367723).

2731103157 is an equidigital number, since it uses as much as digits as its factorization.

2731103157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910367722.

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 2731103157 is about 52259.9574913719. The cubic root of 2731103157 is about 1397.8032141079.

The spelling of 2731103157 in words is "two billion, seven hundred thirty-one million, one hundred three thousand, one hundred fifty-seven".