142231045 has 16 divisors (see below), whose sum is σ = 187152768. Its totient is φ = 102907840.

The previous prime is 142231043. The next prime is 142231049. The reversal of 142231045 is 540132241.

It is not a de Polignac number, because 142231045 - 2¹ = 142231043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142231043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4272 + ... + 17398.

It is an arithmetic number, because the mean of its divisors is an integer number (11697048).

Almost surely, 2^142231045 is an apocalyptic number.

It is an amenable number.

142231045 is a deficient number, since it is larger than the sum of its proper divisors (44921723).

142231045 is a wasteful number, since it uses less digits than its factorization.

142231045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13340.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 142231045 is about 11926.0657804659. The cubic root of 142231045 is about 521.9931456849.

Adding to 142231045 its reverse (540132241), we get a palindrome (682363286).

The spelling of 142231045 in words is "one hundred forty-two million, two hundred thirty-one thousand, forty-five".