142113637 has 2 divisors, whose sum is σ = 142113638. Its totient is φ = 142113636.

The previous prime is 142113623. The next prime is 142113689. The reversal of 142113637 is 736311241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142062561 + 51076 = 11919^2 + 226^2 .

It is a cyclic number.

It is not a de Polignac number, because 142113637 - 2²³ = 133725029 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142113607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71056818 + 71056819.

It is an arithmetic number, because the mean of its divisors is an integer number (71056819).

Almost surely, 2^142113637 is an apocalyptic number.

It is an amenable number.

142113637 is a deficient number, since it is larger than the sum of its proper divisors (1).

142113637 is an equidigital number, since it uses as much as digits as its factorization.

142113637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 142113637 is about 11921.1424368640. The cubic root of 142113637 is about 521.8494755920.

Adding to 142113637 its reverse (736311241), we get a palindrome (878424878).

The spelling of 142113637 in words is "one hundred forty-two million, one hundred thirteen thousand, six hundred thirty-seven".