142515272 has 16 divisors (see below), whose sum is σ = 270877740. Its totient is φ = 70281216.

The previous prime is 142515271. The next prime is 142515281. The reversal of 142515272 is 272515241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 133310116 + 9205156 = 11546^2 + 3034^2 .

It is not an unprimeable number, because it can be changed into a prime (142515271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121433 + ... + 122600.

Almost surely, 2^142515272 is an apocalyptic number.

It is an amenable number.

142515272 is a deficient number, since it is larger than the sum of its proper divisors (128362468).

142515272 is a wasteful number, since it uses less digits than its factorization.

142515272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244112 (or 244108 counting only the distinct ones).

The product of its digits is 5600, while the sum is 29.

The square root of 142515272 is about 11937.9760428642. The cubic root of 142515272 is about 522.3406221622.

The spelling of 142515272 in words is "one hundred forty-two million, five hundred fifteen thousand, two hundred seventy-two".