142447167 has 20 divisors (see below), whose sum is σ = 214116760. Its totient is φ = 94373424.

The previous prime is 142447157. The next prime is 142447169. The reversal of 142447167 is 761744241.

It is a happy number.

142447167 is nontrivially palindromic in base 15.

It is not a de Polignac number, because 142447167 - 2⁶ = 142447103 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 (142447169) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7809 + ... + 18597.

It is an arithmetic number, because the mean of its divisors is an integer number (10705838).

Almost surely, 2^142447167 is an apocalyptic number.

142447167 is a deficient number, since it is larger than the sum of its proper divisors (71669593).

142447167 is a wasteful number, since it uses less digits than its factorization.

142447167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10964 (or 10955 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 142447167 is about 11935.1232503062. The cubic root of 142447167 is about 522.2574037680.

The spelling of 142447167 in words is "one hundred forty-two million, four hundred forty-seven thousand, one hundred sixty-seven".