142521356 has 36 divisors (see below), whose sum is σ = 264993120. Its totient is φ = 67059360.

The previous prime is 142521349. The next prime is 142521359. The reversal of 142521356 is 653125241.

It is not an unprimeable number, because it can be changed into a prime (142521359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330461 + ... + 330891.

It is an arithmetic number, because the mean of its divisors is an integer number (7360920).

Almost surely, 2^142521356 is an apocalyptic number.

It is an amenable number.

142521356 is a deficient number, since it is larger than the sum of its proper divisors (122471764).

142521356 is a wasteful number, since it uses less digits than its factorization.

142521356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 681 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 142521356 is about 11938.2308572083. The cubic root of 142521356 is about 522.3480549916.

Adding to 142521356 its reverse (653125241), we get a palindrome (795646597).

The spelling of 142521356 in words is "one hundred forty-two million, five hundred twenty-one thousand, three hundred fifty-six".