2139675401 has 2 divisors, whose sum is σ = 2139675402. Its totient is φ = 2139675400.

The previous prime is 2139675359. The next prime is 2139675427. The reversal of 2139675401 is 1045769312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1378191376 + 761484025 = 37124^2 + 27595^2 .

It is a cyclic number.

It is not a de Polignac number, because 2139675401 - 2⁶ = 2139675337 is a prime.

It is not a weakly prime, because it can be changed into another prime (2139675491) 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, 1069837700 + 1069837701.

It is an arithmetic number, because the mean of its divisors is an integer number (1069837701).

Almost surely, 2^2139675401 is an apocalyptic number.

It is an amenable number.

2139675401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2139675401 is an equidigital number, since it uses as much as digits as its factorization.

2139675401 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 2139675401 is about 46256.6254821944. The cubic root of 2139675401 is about 1288.5935838987.

The spelling of 2139675401 in words is "two billion, one hundred thirty-nine million, six hundred seventy-five thousand, four hundred one".