2146934869 has 2 divisors, whose sum is σ = 2146934870. Its totient is φ = 2146934868.

The previous prime is 2146934857. The next prime is 2146934903. The reversal of 2146934869 is 9684396412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1985771844 + 161163025 = 44562^2 + 12695^2 .

It is a cyclic number.

It is not a de Polignac number, because 2146934869 - 2⁵ = 2146934837 is a prime.

It is a super-2 number, since 2×2146934869² = 9218658663456094322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2146934269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073467434 + 1073467435.

It is an arithmetic number, because the mean of its divisors is an integer number (1073467435).

Almost surely, 2^2146934869 is an apocalyptic number.

It is an amenable number.

2146934869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146934869 is an equidigital number, since it uses as much as digits as its factorization.

2146934869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 52.

The square root of 2146934869 is about 46335.0285313390. The cubic root of 2146934869 is about 1290.0492477643.

The spelling of 2146934869 in words is "two billion, one hundred forty-six million, nine hundred thirty-four thousand, eight hundred sixty-nine".