142513687 has 2 divisors, whose sum is σ = 142513688. Its totient is φ = 142513686.

The previous prime is 142513667. The next prime is 142513691. The reversal of 142513687 is 786315241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142513687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142513607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71256843 + 71256844.

It is an arithmetic number, because the mean of its divisors is an integer number (71256844).

Almost surely, 2^142513687 is an apocalyptic number.

142513687 is a deficient number, since it is larger than the sum of its proper divisors (1).

142513687 is an equidigital number, since it uses as much as digits as its factorization.

142513687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 37.

The square root of 142513687 is about 11937.9096578924. The cubic root of 142513687 is about 522.3386857313.

The spelling of 142513687 in words is "one hundred forty-two million, five hundred thirteen thousand, six hundred eighty-seven".