142626431 has 2 divisors, whose sum is σ = 142626432. Its totient is φ = 142626430.

The previous prime is 142626409. The next prime is 142626439. The reversal of 142626431 is 134626241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142626431 - 2¹⁰ = 142625407 is a prime.

It is a super-2 number, since 2×142626431² = 40684597639595522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 142626394 and 142626403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142626439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71313215 + 71313216.

It is an arithmetic number, because the mean of its divisors is an integer number (71313216).

Almost surely, 2^142626431 is an apocalyptic number.

142626431 is a deficient number, since it is larger than the sum of its proper divisors (1).

142626431 is an equidigital number, since it uses as much as digits as its factorization.

142626431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 29.

The square root of 142626431 is about 11942.6308240689. The cubic root of 142626431 is about 522.4763918731.

The spelling of 142626431 in words is "one hundred forty-two million, six hundred twenty-six thousand, four hundred thirty-one".