2494157191 has 16 divisors (see below), whose sum is σ = 2639314944. Its totient is φ = 2352297024.

The previous prime is 2494157177. The next prime is 2494157207. The reversal of 2494157191 is 1917514942.

It is a cyclic number.

It is not a de Polignac number, because 2494157191 - 2⁷ = 2494157063 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 (2494157291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485251 + ... + 490363.

It is an arithmetic number, because the mean of its divisors is an integer number (164957184).

Almost surely, 2^2494157191 is an apocalyptic number.

2494157191 is a deficient number, since it is larger than the sum of its proper divisors (145157753).

2494157191 is a wasteful number, since it uses less digits than its factorization.

2494157191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5430.

The product of its digits is 90720, while the sum is 43.

The square root of 2494157191 is about 49941.5377316318. The cubic root of 2494157191 is about 1356.1506619506.

The spelling of 2494157191 in words is "two billion, four hundred ninety-four million, one hundred fifty-seven thousand, one hundred ninety-one".