142902647 has 4 divisors (see below), whose sum is σ = 143096760. Its totient is φ = 142708536.

The previous prime is 142902601. The next prime is 142902679. The reversal of 142902647 is 746209241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746209241 = 383 ⋅1948327.

It is a cyclic number.

It is not a de Polignac number, because 142902647 - 2¹⁰ = 142901623 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 (142902247) 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, 95948 + ... + 97425.

It is an arithmetic number, because the mean of its divisors is an integer number (35774190).

Almost surely, 2^142902647 is an apocalyptic number.

142902647 is a deficient number, since it is larger than the sum of its proper divisors (194113).

142902647 is an equidigital number, since it uses as much as digits as its factorization.

142902647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194112.

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

The square root of 142902647 is about 11954.1895166506. The cubic root of 142902647 is about 522.8134572057.

The spelling of 142902647 in words is "one hundred forty-two million, nine hundred two thousand, six hundred forty-seven".