142400546 has 8 divisors (see below), whose sum is σ = 220491264. Its totient is φ = 68903460.

The previous prime is 142400509. The next prime is 142400579. The reversal of 142400546 is 645004241.

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

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, 1148330 + ... + 1148453.

It is an arithmetic number, because the mean of its divisors is an integer number (27561408).

Almost surely, 2^142400546 is an apocalyptic number.

142400546 is a deficient number, since it is larger than the sum of its proper divisors (78090718).

142400546 is a wasteful number, since it uses less digits than its factorization.

142400546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296816.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 142400546 is about 11933.1699895711. The cubic root of 142400546 is about 522.2004216609.

Adding to 142400546 its reverse (645004241), we get a palindrome (787404787).

The spelling of 142400546 in words is "one hundred forty-two million, four hundred thousand, five hundred forty-six".