2140469957 has 2 divisors, whose sum is σ = 2140469958. Its totient is φ = 2140469956.

The previous prime is 2140469939. The next prime is 2140469963. The reversal of 2140469957 is 7599640412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2038883716 + 101586241 = 45154^2 + 10079^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140469957 - 2⁶ = 2140469893 is a prime.

It is a super-2 number, since 2×2140469957² = 9163223273639163698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2140469917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070234978 + 1070234979.

It is an arithmetic number, because the mean of its divisors is an integer number (1070234979).

Almost surely, 2^2140469957 is an apocalyptic number.

It is an amenable number.

2140469957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140469957 is an equidigital number, since it uses as much as digits as its factorization.

2140469957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 2140469957 is about 46265.2132492654. The cubic root of 2140469957 is about 1288.7530680670.

The spelling of 2140469957 in words is "two billion, one hundred forty million, four hundred sixty-nine thousand, nine hundred fifty-seven".