142959947 has 16 divisors (see below), whose sum is σ = 159183360. Its totient is φ = 127553952.

The previous prime is 142959923. The next prime is 142959967. The reversal of 142959947 is 749959241.

It is a cyclic number.

It is not a de Polignac number, because 142959947 - 2²⁴ = 126182731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142959895 and 142959904.

It is not an unprimeable number, because it can be changed into a prime (142959917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49304 + ... + 52122.

It is an arithmetic number, because the mean of its divisors is an integer number (9948960).

Almost surely, 2^142959947 is an apocalyptic number.

142959947 is a deficient number, since it is larger than the sum of its proper divisors (16223413).

142959947 is a wasteful number, since it uses less digits than its factorization.

142959947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2962.

The product of its digits is 816480, while the sum is 50.

The square root of 142959947 is about 11956.5859257566. The cubic root of 142959947 is about 522.8833257692.

It can be divided in two parts, 14295 and 9947, that added together give a palindrome (24242).

The spelling of 142959947 in words is "one hundred forty-two million, nine hundred fifty-nine thousand, nine hundred forty-seven".