2142149431 has 2 divisors, whose sum is σ = 2142149432. Its totient is φ = 2142149430.

The previous prime is 2142149419. The next prime is 2142149441. The reversal of 2142149431 is 1349412412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2142149431 - 2²³ = 2133760823 is a prime.

It is a super-2 number, since 2×2142149431² = 9177608369467247522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2142149393 and 2142149402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2142149441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071074715 + 1071074716.

It is an arithmetic number, because the mean of its divisors is an integer number (1071074716).

Almost surely, 2^2142149431 is an apocalyptic number.

2142149431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142149431 is an equidigital number, since it uses as much as digits as its factorization.

2142149431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 2142149431 is about 46283.3601956470. The cubic root of 2142149431 is about 1289.0900441314.

The spelling of 2142149431 in words is "two billion, one hundred forty-two million, one hundred forty-nine thousand, four hundred thirty-one".