142490837 has 2 divisors, whose sum is σ = 142490838. Its totient is φ = 142490836.

The previous prime is 142490809. The next prime is 142490839. The reversal of 142490837 is 738094241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128845201 + 13645636 = 11351^2 + 3694^2 .

It is a cyclic number.

It is not a de Polignac number, because 142490837 - 2²⁶ = 75381973 is a prime.

Together with 142490839, 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 142490837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142490839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71245418 + 71245419.

It is an arithmetic number, because the mean of its divisors is an integer number (71245419).

Almost surely, 2^142490837 is an apocalyptic number.

It is an amenable number.

142490837 is a deficient number, since it is larger than the sum of its proper divisors (1).

142490837 is an equidigital number, since it uses as much as digits as its factorization.

142490837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 142490837 is about 11936.9525843073. The cubic root of 142490837 is about 522.3107677650.

The spelling of 142490837 in words is "one hundred forty-two million, four hundred ninety thousand, eight hundred thirty-seven".