2170465139 has 2 divisors, whose sum is σ = 2170465140. Its totient is φ = 2170465138.

The previous prime is 2170465111. The next prime is 2170465151. The reversal of 2170465139 is 9315640712.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2170465139 - 2⁸ = 2170464883 is a prime.

It is a super-2 number, since 2×2170465139² = 9421837839228578642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2170465109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085232569 + 1085232570.

It is an arithmetic number, because the mean of its divisors is an integer number (1085232570).

Almost surely, 2^2170465139 is an apocalyptic number.

2170465139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170465139 is an equidigital number, since it uses as much as digits as its factorization.

2170465139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 2170465139 is about 46588.2510832935. The cubic root of 2170465139 is about 1294.7450866000.

The spelling of 2170465139 in words is "two billion, one hundred seventy million, four hundred sixty-five thousand, one hundred thirty-nine".