2171355092 has 12 divisors (see below), whose sum is σ = 3871567476. Its totient is φ = 1065192960.

The previous prime is 2171355091. The next prime is 2171355127. The reversal of 2171355092 is 2905531712.

2171355092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1244396176 + 926958916 = 35276^2 + 30446^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171355091) 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, 5120909 + ... + 5121332.

It is an arithmetic number, because the mean of its divisors is an integer number (322630623).

Almost surely, 2^2171355092 is an apocalyptic number.

It is an amenable number.

2171355092 is a deficient number, since it is larger than the sum of its proper divisors (1700212384).

2171355092 is a wasteful number, since it uses less digits than its factorization.

2171355092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10242298 (or 10242296 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 2171355092 is about 46597.8013644421. The cubic root of 2171355092 is about 1294.9220233008.

The spelling of 2171355092 in words is "two billion, one hundred seventy-one million, three hundred fifty-five thousand, ninety-two".