142289929 has 2 divisors, whose sum is σ = 142289930. Its totient is φ = 142289928.

The previous prime is 142289923. The next prime is 142289941. The reversal of 142289929 is 929982241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138603529 + 3686400 = 11773^2 + 1920^2 .

It is a cyclic number.

It is not a de Polignac number, because 142289929 - 2⁵ = 142289897 is a prime.

It is not a weakly prime, because it can be changed into another prime (142289923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71144964 + 71144965.

It is an arithmetic number, because the mean of its divisors is an integer number (71144965).

Almost surely, 2^142289929 is an apocalyptic number.

It is an amenable number.

142289929 is a deficient number, since it is larger than the sum of its proper divisors (1).

142289929 is an equidigital number, since it uses as much as digits as its factorization.

142289929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 46.

The square root of 142289929 is about 11928.5342351858. The cubic root of 142289929 is about 522.0651712253.

The spelling of 142289929 in words is "one hundred forty-two million, two hundred eighty-nine thousand, nine hundred twenty-nine".