142533864 has 128 divisors (see below), whose sum is σ = 435456000. Its totient is φ = 42840000.

The previous prime is 142533851. The next prime is 142533871. The reversal of 142533864 is 468335241.

142533864 is a `hidden beast` number, since 1 + 42 + 533 + 86 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 567739 + ... + 567989.

It is an arithmetic number, because the mean of its divisors is an integer number (3402000).

Almost surely, 2^142533864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142533864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217728000).

142533864 is an abundant number, since it is smaller than the sum of its proper divisors (292922136).

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

142533864 is a wasteful number, since it uses less digits than its factorization.

142533864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 506 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 142533864 is about 11938.7547089301. The cubic root of 142533864 is about 522.3633353644.

The spelling of 142533864 in words is "one hundred forty-two million, five hundred thirty-three thousand, eight hundred sixty-four".