2140338877 has 2 divisors, whose sum is σ = 2140338878. Its totient is φ = 2140338876.

The previous prime is 2140338857. The next prime is 2140338883. The reversal of 2140338877 is 7788330412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2137120441 + 3218436 = 46229^2 + 1794^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140338877 - 2¹⁵ = 2140306109 is a prime.

It is a super-2 number, since 2×2140338877² = 9162101016795242258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2140338817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070169438 + 1070169439.

It is an arithmetic number, because the mean of its divisors is an integer number (1070169439).

Almost surely, 2^2140338877 is an apocalyptic number.

It is an amenable number.

2140338877 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140338877 is an equidigital number, since it uses as much as digits as its factorization.

2140338877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 2140338877 is about 46263.7966124701. The cubic root of 2140338877 is about 1288.7267602617.

The spelling of 2140338877 in words is "two billion, one hundred forty million, three hundred thirty-eight thousand, eight hundred seventy-seven".