142388500 has 24 divisors (see below), whose sum is σ = 310977576. Its totient is φ = 56955200.

The previous prime is 142388473. The next prime is 142388503. The reversal of 142388500 is 5883241.

It can be written as a sum of positive squares in 4 ways, for example, as 15876 + 142372624 = 126^2 + 11932^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142388503) 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 in 7 ways as a sum of consecutive naturals, for example, 141889 + ... + 142888.

It is an arithmetic number, because the mean of its divisors is an integer number (12957399).

Almost surely, 2^142388500 is an apocalyptic number.

142388500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142388500 is an abundant number, since it is smaller than the sum of its proper divisors (168589076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142388500 is a wasteful number, since it uses less digits than its factorization.

142388500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284796 (or 284784 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 142388500 is about 11932.6652513175. The cubic root of 142388500 is about 522.1856965215.

The spelling of 142388500 in words is "one hundred forty-two million, three hundred eighty-eight thousand, five hundred".