142454231 has 2 divisors, whose sum is σ = 142454232. Its totient is φ = 142454230.

The previous prime is 142454219. The next prime is 142454233. The reversal of 142454231 is 132454241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142454231 - 2⁶ = 142454167 is a prime.

It is a super-2 number, since 2×142454231² = 40586415859602722, which contains 22 as substring.

Together with 142454233, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142454231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142454233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71227115 + 71227116.

It is an arithmetic number, because the mean of its divisors is an integer number (71227116).

Almost surely, 2^142454231 is an apocalyptic number.

142454231 is a deficient number, since it is larger than the sum of its proper divisors (1).

142454231 is an equidigital number, since it uses as much as digits as its factorization.

142454231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 26.

The square root of 142454231 is about 11935.4191799032. The cubic root of 142454231 is about 522.2660365952.

It can be divided in two parts, 1424 and 54231, that added together give a palindrome (55655).

The spelling of 142454231 in words is "one hundred forty-two million, four hundred fifty-four thousand, two hundred thirty-one".