142953329 has 4 divisors (see below), whose sum is σ = 143469684. Its totient is φ = 142436976.

The previous prime is 142953319. The next prime is 142953331. The reversal of 142953329 is 923359241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44249104 + 98704225 = 6652^2 + 9935^2 .

It is a cyclic number.

It is not a de Polignac number, because 142953329 - 2²⁰ = 141904753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142953292 and 142953301.

It is not an unprimeable number, because it can be changed into a prime (142953319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257762 + ... + 258315.

It is an arithmetic number, because the mean of its divisors is an integer number (35867421).

Almost surely, 2^142953329 is an apocalyptic number.

It is an amenable number.

142953329 is a deficient number, since it is larger than the sum of its proper divisors (516355).

142953329 is an equidigital number, since it uses as much as digits as its factorization.

142953329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516354.

The product of its digits is 58320, while the sum is 38.

The square root of 142953329 is about 11956.3091713120. The cubic root of 142953329 is about 522.8752570868.

The spelling of 142953329 in words is "one hundred forty-two million, nine hundred fifty-three thousand, three hundred twenty-nine".