1142009878 has 8 divisors (see below), whose sum is σ = 1713499272. Its totient is φ = 570843456.

The previous prime is 1142009863. The next prime is 1142009917. The reversal of 1142009878 is 8789002411.

It is a happy number.

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

It is a super-2 number, since 2×1142009878² = 2608373122899149768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1142009878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71700 + ... + 86167.

It is an arithmetic number, because the mean of its divisors is an integer number (214187409).

Almost surely, 2^1142009878 is an apocalyptic number.

1142009878 is a deficient number, since it is larger than the sum of its proper divisors (571489394).

1142009878 is a wasteful number, since it uses less digits than its factorization.

1142009878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161486.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 1142009878 is about 33793.6366495232. The cubic root of 1142009878 is about 1045.2574865150.

The spelling of 1142009878 in words is "one billion, one hundred forty-two million, nine thousand, eight hundred seventy-eight".