142452517 has 2 divisors, whose sum is σ = 142452518. Its totient is φ = 142452516.

The previous prime is 142452487. The next prime is 142452523. The reversal of 142452517 is 715254241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130279396 + 12173121 = 11414^2 + 3489^2 .

It is a cyclic number.

It is not a de Polignac number, because 142452517 - 2⁷ = 142452389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142452577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71226258 + 71226259.

It is an arithmetic number, because the mean of its divisors is an integer number (71226259).

Almost surely, 2^142452517 is an apocalyptic number.

It is an amenable number.

142452517 is a deficient number, since it is larger than the sum of its proper divisors (1).

142452517 is an equidigital number, since it uses as much as digits as its factorization.

142452517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11200, while the sum is 31.

The square root of 142452517 is about 11935.3473765953. The cubic root of 142452517 is about 522.2639419631.

The spelling of 142452517 in words is "one hundred forty-two million, four hundred fifty-two thousand, five hundred seventeen".