142642516 has 6 divisors (see below), whose sum is σ = 249624410. Its totient is φ = 71321256.

The previous prime is 142642483. The next prime is 142642543. The reversal of 142642516 is 615246241.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 139145616 + 3496900 = 11796^2 + 1870^2 .

It is a super-3 number, since 3×142642516³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17830311 + ... + 17830318.

Almost surely, 2^142642516 is an apocalyptic number.

It is an amenable number.

142642516 is a deficient number, since it is larger than the sum of its proper divisors (106981894).

142642516 is a wasteful number, since it uses less digits than its factorization.

142642516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35660633 (or 35660631 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 142642516 is about 11943.3042329165. The cubic root of 142642516 is about 522.4960322646.

Adding to 142642516 its reverse (615246241), we get a palindrome (757888757).

The spelling of 142642516 in words is "one hundred forty-two million, six hundred forty-two thousand, five hundred sixteen".