142504631 has 2 divisors, whose sum is σ = 142504632. Its totient is φ = 142504630.

The previous prime is 142504603. The next prime is 142504657. The reversal of 142504631 is 136405241.

It is an a-pointer prime, because the next prime (142504657) can be obtained adding 142504631 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142504631 - 2²⁶ = 75395767 is a prime.

It is a super-2 number, since 2×142504631² = 40615139712892322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142504631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142503631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71252315 + 71252316.

It is an arithmetic number, because the mean of its divisors is an integer number (71252316).

Almost surely, 2^142504631 is an apocalyptic number.

142504631 is a deficient number, since it is larger than the sum of its proper divisors (1).

142504631 is an equidigital number, since it uses as much as digits as its factorization.

142504631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 142504631 is about 11937.5303559823. The cubic root of 142504631 is about 522.3276215324.

Adding to 142504631 its reverse (136405241), we get a palindrome (278909872).

It can be divided in two parts, 14250 and 4631, that added together give a palindrome (18881).

The spelling of 142504631 in words is "one hundred forty-two million, five hundred four thousand, six hundred thirty-one".