142343272 has 8 divisors (see below), whose sum is σ = 266893650. Its totient is φ = 71171632.

The previous prime is 142343237. The next prime is 142343273. The reversal of 142343272 is 272343241.

It can be written as a sum of positive squares in only one way, i.e., 113763556 + 28579716 = 10666^2 + 5346^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 142343272.

It is not an unprimeable number, because it can be changed into a prime (142343273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8896447 + ... + 8896462.

Almost surely, 2^142343272 is an apocalyptic number.

It is an amenable number.

142343272 is a deficient number, since it is larger than the sum of its proper divisors (124550378).

142343272 is a wasteful number, since it uses less digits than its factorization.

142343272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17792915 (or 17792911 counting only the distinct ones).

The product of its digits is 8064, while the sum is 28.

The square root of 142343272 is about 11930.7699667708. The cubic root of 142343272 is about 522.1304019911.

The spelling of 142343272 in words is "one hundred forty-two million, three hundred forty-three thousand, two hundred seventy-two".