142427047 has 4 divisors (see below), whose sum is σ = 162773776. Its totient is φ = 122080320.

The previous prime is 142427041. The next prime is 142427053. The reversal of 142427047 is 740724241.

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

It is an interprime number because it is at equal distance from previous prime (142427041) and next prime (142427053).

It is a cyclic number.

It is not a de Polignac number, because 142427047 - 2³ = 142427039 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 (142427041) 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, 10173354 + ... + 10173367.

It is an arithmetic number, because the mean of its divisors is an integer number (40693444).

Almost surely, 2^142427047 is an apocalyptic number.

142427047 is a deficient number, since it is larger than the sum of its proper divisors (20346729).

142427047 is an equidigital number, since it uses as much as digits as its factorization.

142427047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20346728.

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 142427047 is about 11934.2803302084. The cubic root of 142427047 is about 522.2328138002.

The spelling of 142427047 in words is "one hundred forty-two million, four hundred twenty-seven thousand, forty-seven".