142521002 has 16 divisors (see below), whose sum is σ = 235843272. Its totient is φ = 64174080.

The previous prime is 142520971. The next prime is 142521019. The reversal of 142521002 is 200125241.

It can be written as a sum of positive squares in 4 ways, for example, as 25210441 + 117310561 = 5021^2 + 10831^2 .

It is a super-2 number, since 2×142521002² = 40624472022168008, which contains 22 as substring.

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, 65783 + ... + 67914.

Almost surely, 2^142521002 is an apocalyptic number.

142521002 is a deficient number, since it is larger than the sum of its proper divisors (93322270).

142521002 is a wasteful number, since it uses less digits than its factorization.

142521002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133753.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 142521002 is about 11938.2160308817. The cubic root of 142521002 is about 522.3476225153.

Adding to 142521002 its reverse (200125241), we get a palindrome (342646243).

The spelling of 142521002 in words is "one hundred forty-two million, five hundred twenty-one thousand, two".