142534816 has 12 divisors (see below), whose sum is σ = 280615482. Its totient is φ = 71267392.

The previous prime is 142534813. The next prime is 142534823. The reversal of 142534816 is 618435241.

It can be written as a sum of positive squares in only one way, i.e., 123210000 + 19324816 = 11100^2 + 4396^2 .

It is not an unprimeable number, because it can be changed into a prime (142534811) by changing a digit.

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 as a sum of consecutive naturals, namely, 2227075 + ... + 2227138.

Almost surely, 2^142534816 is an apocalyptic number.

142534816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142534816 is a deficient number, since it is larger than the sum of its proper divisors (138080666).

142534816 is an equidigital number, since it uses as much as digits as its factorization.

142534816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4454223 (or 4454215 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 142534816 is about 11938.7945790184. The cubic root of 142534816 is about 522.3644983367.

The spelling of 142534816 in words is "one hundred forty-two million, five hundred thirty-four thousand, eight hundred sixteen".