2142454999 has 2 divisors, whose sum is σ = 2142455000. Its totient is φ = 2142454998.

The previous prime is 2142454997. The next prime is 2142455087. The reversal of 2142454999 is 9994542412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2142454999 - 2¹ = 2142454997 is a prime.

It is a super-2 number, since 2×2142454999² = 9180226845480180002, which contains 22 as substring.

Together with 2142454997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2142454997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071227499 + 1071227500.

It is an arithmetic number, because the mean of its divisors is an integer number (1071227500).

Almost surely, 2^2142454999 is an apocalyptic number.

2142454999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142454999 is an equidigital number, since it uses as much as digits as its factorization.

2142454999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 49.

The square root of 2142454999 is about 46286.6611347157. The cubic root of 2142454999 is about 1289.1513355198.

The spelling of 2142454999 in words is "two billion, one hundred forty-two million, four hundred fifty-four thousand, nine hundred ninety-nine".