142929009 has 8 divisors (see below), whose sum is σ = 211746720. Its totient is φ = 95285988.

The previous prime is 142928999. The next prime is 142929019. The reversal of 142929009 is 900929241.

It is an interprime number because it is at equal distance from previous prime (142928999) and next prime (142929019).

It is not a de Polignac number, because 142929009 - 2⁵ = 142928977 is a prime.

It is a super-2 number, since 2×142929009² = 40857403227444162, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142929019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2646807 + ... + 2646860.

It is an arithmetic number, because the mean of its divisors is an integer number (26468340).

Almost surely, 2^142929009 is an apocalyptic number.

It is an amenable number.

142929009 is a deficient number, since it is larger than the sum of its proper divisors (68817711).

142929009 is an equidigital number, since it uses as much as digits as its factorization.

142929009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5293676 (or 5293670 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 142929009 is about 11955.2920917893. The cubic root of 142929009 is about 522.8456039416.

The spelling of 142929009 in words is "one hundred forty-two million, nine hundred twenty-nine thousand, nine".