2142403139 has 2 divisors, whose sum is σ = 2142403140. Its totient is φ = 2142403138.

The previous prime is 2142403117. The next prime is 2142403169. The reversal of 2142403139 is 9313042412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2142403139 - 2¹² = 2142399043 is a prime.

It is not a weakly prime, because it can be changed into another prime (2142403169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071201569 + 1071201570.

It is an arithmetic number, because the mean of its divisors is an integer number (1071201570).

Almost surely, 2^2142403139 is an apocalyptic number.

2142403139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142403139 is an equidigital number, since it uses as much as digits as its factorization.

2142403139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 2142403139 is about 46286.1009267361. The cubic root of 2142403139 is about 1289.1409337568.

The spelling of 2142403139 in words is "two billion, one hundred forty-two million, four hundred three thousand, one hundred thirty-nine".