142657513 has 2 divisors, whose sum is σ = 142657514. Its totient is φ = 142657512.

The previous prime is 142657483. The next prime is 142657519. The reversal of 142657513 is 315756241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113465104 + 29192409 = 10652^2 + 5403^2 .

It is a cyclic number.

It is not a de Polignac number, because 142657513 - 2²⁵ = 109103081 is a prime.

It is not a weakly prime, because it can be changed into another prime (142657519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71328756 + 71328757.

It is an arithmetic number, because the mean of its divisors is an integer number (71328757).

Almost surely, 2^142657513 is an apocalyptic number.

It is an amenable number.

142657513 is a deficient number, since it is larger than the sum of its proper divisors (1).

142657513 is an equidigital number, since it uses as much as digits as its factorization.

142657513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 34.

The square root of 142657513 is about 11943.9320577438. The cubic root of 142657513 is about 522.5143428371.

The spelling of 142657513 in words is "one hundred forty-two million, six hundred fifty-seven thousand, five hundred thirteen".