2172652187 has 2 divisors, whose sum is σ = 2172652188. Its totient is φ = 2172652186.

The previous prime is 2172652129. The next prime is 2172652211. The reversal of 2172652187 is 7812562712.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2172652187 - 2⁶ = 2172652123 is a prime.

It is not a weakly prime, because it can be changed into another prime (2172652117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086326093 + 1086326094.

It is an arithmetic number, because the mean of its divisors is an integer number (1086326094).

Almost surely, 2^2172652187 is an apocalyptic number.

2172652187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2172652187 is an equidigital number, since it uses as much as digits as its factorization.

2172652187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 41.

The square root of 2172652187 is about 46611.7172715188. The cubic root of 2172652187 is about 1295.1798196950.

The spelling of 2172652187 in words is "two billion, one hundred seventy-two million, six hundred fifty-two thousand, one hundred eighty-seven".