142730552 has 8 divisors (see below), whose sum is σ = 267619800. Its totient is φ = 71365272.

The previous prime is 142730543. The next prime is 142730579. The reversal of 142730552 is 255037241.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8920652 + ... + 8920667.

It is an arithmetic number, because the mean of its divisors is an integer number (33452475).

Almost surely, 2^142730552 is an apocalyptic number.

It is an amenable number.

142730552 is a deficient number, since it is larger than the sum of its proper divisors (124889248).

142730552 is a wasteful number, since it uses less digits than its factorization.

142730552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17841325 (or 17841321 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 142730552 is about 11946.9892441569. The cubic root of 142730552 is about 522.6035013936.

Adding to 142730552 its reverse (255037241), we get a palindrome (397767793).

The spelling of 142730552 in words is "one hundred forty-two million, seven hundred thirty thousand, five hundred fifty-two".