142241421530 has 32 divisors (see below), whose sum is σ = 278259181200. Its totient is φ = 52038070272.

The previous prime is 142241421499. The next prime is 142241421547. The reversal of 142241421530 is 35124142241.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 74574324889 + 67667096641 = 273083^2 + 260129^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142241421493 and 142241421502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5004935 + ... + 5033274.

Almost surely, 2^142241421530 is an apocalyptic number.

142241421530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142241421530 is a deficient number, since it is larger than the sum of its proper divisors (136017759670).

142241421530 is a wasteful number, since it uses less digits than its factorization.

142241421530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10038338.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 142241421530 its reverse (35124142241), we get a palindrome (177365563771).

The spelling of 142241421530 in words is "one hundred forty-two billion, two hundred forty-one million, four hundred twenty-one thousand, five hundred thirty".