142531254 has 12 divisors (see below), whose sum is σ = 308817756. Its totient is φ = 47510412.

The previous prime is 142531241. The next prime is 142531271. The reversal of 142531254 is 452135241.

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, 3959184 + ... + 3959219.

It is an arithmetic number, because the mean of its divisors is an integer number (25734813).

Almost surely, 2^142531254 is an apocalyptic number.

142531254 is an abundant number, since it is smaller than the sum of its proper divisors (166286502).

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

142531254 is a wasteful number, since it uses less digits than its factorization.

142531254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7918411 (or 7918408 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 142531254 is about 11938.6454005469. The cubic root of 142531254 is about 522.3601469370.

Adding to 142531254 its reverse (452135241), we get a palindrome (594666495).

The spelling of 142531254 in words is "one hundred forty-two million, five hundred thirty-one thousand, two hundred fifty-four".