142647029 has 4 divisors (see below), whose sum is σ = 163025184. Its totient is φ = 122268876.

The previous prime is 142647007. The next prime is 142647031. The reversal of 142647029 is 920746241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 920746241 = 12037 ⋅76493.

It is a cyclic number.

It is not a de Polignac number, because 142647029 - 2⁸ = 142646773 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142647029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142647229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10189067 + ... + 10189080.

It is an arithmetic number, because the mean of its divisors is an integer number (40756296).

Almost surely, 2^142647029 is an apocalyptic number.

It is an amenable number.

142647029 is a deficient number, since it is larger than the sum of its proper divisors (20378155).

142647029 is an equidigital number, since it uses as much as digits as its factorization.

142647029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20378154.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 142647029 is about 11943.4931657367. The cubic root of 142647029 is about 522.5015425425.

The spelling of 142647029 in words is "one hundred forty-two million, six hundred forty-seven thousand, twenty-nine".