142002534 has 16 divisors (see below), whose sum is σ = 284486400. Its totient is φ = 47253960.

The previous prime is 142002499. The next prime is 142002541. The reversal of 142002534 is 435200241.

142002534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 142002534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16162 + ... + 23349.

It is an arithmetic number, because the mean of its divisors is an integer number (17780400).

Almost surely, 2^142002534 is an apocalyptic number.

142002534 is an abundant number, since it is smaller than the sum of its proper divisors (142483866).

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

142002534 is a wasteful number, since it uses less digits than its factorization.

142002534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40115.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 142002534 is about 11916.4816116167. The cubic root of 142002534 is about 521.7134479284.

Adding to 142002534 its reverse (435200241), we get a palindrome (577202775).

The spelling of 142002534 in words is "one hundred forty-two million, two thousand, five hundred thirty-four".