142142454 has 12 divisors (see below), whose sum is σ = 307975356. Its totient is φ = 47380812.

The previous prime is 142142381. The next prime is 142142479. The reversal of 142142454 is 454241241.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3948384 + ... + 3948419.

It is an arithmetic number, because the mean of its divisors is an integer number (25664613).

Almost surely, 2^142142454 is an apocalyptic number.

142142454 is an abundant number, since it is smaller than the sum of its proper divisors (165832902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142142454 is a wasteful number, since it uses less digits than its factorization.

142142454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7896811 (or 7896808 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 142142454 is about 11922.3510265383. The cubic root of 142142454 is about 521.8847457704.

Adding to 142142454 its reverse (454241241), we get a palindrome (596383695).

The spelling of 142142454 in words is "one hundred forty-two million, one hundred forty-two thousand, four hundred fifty-four".