142861433 has 12 divisors (see below), whose sum is σ = 169110564. Its totient is φ = 119882400.

The previous prime is 142861427. The next prime is 142861457. The reversal of 142861433 is 334168241.

It can be written as a sum of positive squares in 2 ways, for example, as 53993104 + 88868329 = 7348^2 + 9427^2 .

It is a de Polignac number, because none of the positive numbers 2^k-142861433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142861433.

It is not an unprimeable number, because it can be changed into a prime (142861483) 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 11 ways as a sum of consecutive naturals, for example, 43838 + ... + 46983.

It is an arithmetic number, because the mean of its divisors is an integer number (14092547).

Almost surely, 2^142861433 is an apocalyptic number.

142861433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142861433 is a deficient number, since it is larger than the sum of its proper divisors (26249131).

142861433 is a wasteful number, since it uses less digits than its factorization.

142861433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90856 (or 90845 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 142861433 is about 11952.4655615484. The cubic root of 142861433 is about 522.7631915037.

The spelling of 142861433 in words is "one hundred forty-two million, eight hundred sixty-one thousand, four hundred thirty-three".