142401530 has 32 divisors (see below), whose sum is σ = 264174480. Its totient is φ = 55226880.

The previous prime is 142401491. The next prime is 142401547. The reversal of 142401530 is 35104241.

It can be written as a sum of positive squares in 8 ways, for example, as 127938721 + 14462809 = 11311^2 + 3803^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150860 + ... + 151800.

Almost surely, 2^142401530 is an apocalyptic number.

142401530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142401530 is a deficient number, since it is larger than the sum of its proper divisors (121772950).

142401530 is a wasteful number, since it uses less digits than its factorization.

142401530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 142401530 is about 11933.2112191145. The cubic root of 142401530 is about 522.2016244747.

Adding to 142401530 its reverse (35104241), we get a palindrome (177505771).

The spelling of 142401530 in words is "one hundred forty-two million, four hundred one thousand, five hundred thirty".