142878886 has 8 divisors (see below), whose sum is σ = 214369344. Its totient is φ = 71422440.

The previous prime is 142878881. The next prime is 142878889. The reversal of 142878886 is 688878241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142878881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10456 + ... + 19876.

It is an arithmetic number, because the mean of its divisors is an integer number (26796168).

Almost surely, 2^142878886 is an apocalyptic number.

142878886 is a deficient number, since it is larger than the sum of its proper divisors (71490458).

142878886 is an equidigital number, since it uses as much as digits as its factorization.

142878886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17006.

The product of its digits is 1376256, while the sum is 52.

The square root of 142878886 is about 11953.1956396606. The cubic root of 142878886 is about 522.7844788315.

The spelling of 142878886 in words is "one hundred forty-two million, eight hundred seventy-eight thousand, eight hundred eighty-six".