142129759 has 12 divisors (see below), whose sum is σ = 145881000. Its totient is φ = 138464064.

The previous prime is 142129751. The next prime is 142129777. The reversal of 142129759 is 957921241.

It is a happy number.

It is not a de Polignac number, because 142129759 - 2³ = 142129751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142129751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 793932 + ... + 794110.

It is an arithmetic number, because the mean of its divisors is an integer number (12156750).

Almost surely, 2^142129759 is an apocalyptic number.

142129759 is a deficient number, since it is larger than the sum of its proper divisors (3751241).

142129759 is an equidigital number, since it uses as much as digits as its factorization.

142129759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 401 counting only the distinct ones).

The product of its digits is 45360, while the sum is 40.

The square root of 142129759 is about 11921.8186112690. The cubic root of 142129759 is about 521.8692084839.

The spelling of 142129759 in words is "one hundred forty-two million, one hundred twenty-nine thousand, seven hundred fifty-nine".