2132392921 has 4 divisors (see below), whose sum is σ = 2167350244. Its totient is φ = 2097435600.

The previous prime is 2132392907. The next prime is 2132392931. The reversal of 2132392921 is 1292932312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 199911321 + 1932481600 = 14139^2 + 43960^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132392921 - 2⁷ = 2132392793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2132392931) 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, 17478570 + ... + 17478691.

It is an arithmetic number, because the mean of its divisors is an integer number (541837561).

Almost surely, 2^2132392921 is an apocalyptic number.

It is an amenable number.

2132392921 is a deficient number, since it is larger than the sum of its proper divisors (34957323).

2132392921 is an equidigital number, since it uses as much as digits as its factorization.

2132392921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34957322.

The product of its digits is 11664, while the sum is 34.

The square root of 2132392921 is about 46177.8401508776. The cubic root of 2132392921 is about 1287.1299937299.

It can be divided in two parts, 21323 and 92921, that added together give a square (114244 = 338²).

The spelling of 2132392921 in words is "two billion, one hundred thirty-two million, three hundred ninety-two thousand, nine hundred twenty-one".