142877542 has 4 divisors (see below), whose sum is σ = 214316316. Its totient is φ = 71438770.

The previous prime is 142877507. The next prime is 142877551. The reversal of 142877542 is 245778241.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 142877495 and 142877504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35719384 + ... + 35719387.

It is an arithmetic number, because the mean of its divisors is an integer number (53579079).

Almost surely, 2^142877542 is an apocalyptic number.

142877542 is a deficient number, since it is larger than the sum of its proper divisors (71438774).

142877542 is an equidigital number, since it uses as much as digits as its factorization.

142877542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71438773.

The product of its digits is 125440, while the sum is 40.

The square root of 142877542 is about 11953.1394202527. The cubic root of 142877542 is about 522.7828396238.

The spelling of 142877542 in words is "one hundred forty-two million, eight hundred seventy-seven thousand, five hundred forty-two".