142650031 has 2 divisors, whose sum is σ = 142650032. Its totient is φ = 142650030.

The previous prime is 142650019. The next prime is 142650047. The reversal of 142650031 is 130056241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142650031 - 2⁵ = 142649999 is a prime.

It is a super-2 number, since 2×142650031² = 40698062688601922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 142649984 and 142650011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142659031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71325015 + 71325016.

It is an arithmetic number, because the mean of its divisors is an integer number (71325016).

Almost surely, 2^142650031 is an apocalyptic number.

142650031 is a deficient number, since it is larger than the sum of its proper divisors (1).

142650031 is an equidigital number, since it uses as much as digits as its factorization.

142650031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 142650031 is about 11943.6188402008. The cubic root of 142650031 is about 522.5052078569.

The spelling of 142650031 in words is "one hundred forty-two million, six hundred fifty thousand, thirty-one".