142493816 has 16 divisors (see below), whose sum is σ = 267303240. Its totient is φ = 71212960.

The previous prime is 142493797. The next prime is 142493851. The reversal of 142493816 is 618394241.

It is a self number, because there is not a number n which added to its sum of digits gives 142493816.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28031 + ... + 32721.

Almost surely, 2^142493816 is an apocalyptic number.

It is an amenable number.

142493816 is a deficient number, since it is larger than the sum of its proper divisors (124809424).

142493816 is a wasteful number, since it uses less digits than its factorization.

142493816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8494 (or 8490 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 142493816 is about 11937.0773642462. The cubic root of 142493816 is about 522.3144076550.

The spelling of 142493816 in words is "one hundred forty-two million, four hundred ninety-three thousand, eight hundred sixteen".