142142455 has 16 divisors (see below), whose sum is σ = 209934144. Its totient is φ = 89971200.

The previous prime is 142142381. The next prime is 142142479. The reversal of 142142455 is 554241241.

It is not a de Polignac number, because 142142455 - 2⁷ = 142142327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155746 + ... + 156655.

It is an arithmetic number, because the mean of its divisors is an integer number (13120884).

Almost surely, 2^142142455 is an apocalyptic number.

142142455 is a deficient number, since it is larger than the sum of its proper divisors (67791689).

142142455 is a wasteful number, since it uses less digits than its factorization.

142142455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312426.

The product of its digits is 6400, while the sum is 28.

The square root of 142142455 is about 11922.3510684764. The cubic root of 142142455 is about 521.8847469943.

Adding to 142142455 its reverse (554241241), we get a palindrome (696383696).

The spelling of 142142455 in words is "one hundred forty-two million, one hundred forty-two thousand, four hundred fifty-five".