2132247491 has 12 divisors (see below), whose sum is σ = 2470969320. Its totient is φ = 1824380160.

The previous prime is 2132247473. The next prime is 2132247539. The reversal of 2132247491 is 1947422312.

It is not a de Polignac number, because 2132247491 - 2¹⁸ = 2131985347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2132247401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 332186 + ... + 338543.

It is an arithmetic number, because the mean of its divisors is an integer number (205914110).

Almost surely, 2^2132247491 is an apocalyptic number.

2132247491 is a deficient number, since it is larger than the sum of its proper divisors (338721829).

2132247491 is a wasteful number, since it uses less digits than its factorization.

2132247491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670774 (or 670757 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 2132247491 is about 46176.2654509868. The cubic root of 2132247491 is about 1287.1007321480.

The spelling of 2132247491 in words is "two billion, one hundred thirty-two million, two hundred forty-seven thousand, four hundred ninety-one".