142113530 has 32 divisors (see below), whose sum is σ = 280013328. Its totient is φ = 51609600.

The previous prime is 142113473. The next prime is 142113541. The reversal of 142113530 is 35311241.

It can be written as a sum of positive squares in 8 ways, for example, as 1951609 + 140161921 = 1397^2 + 11839^2 .

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, 1031 + ... + 16890.

Almost surely, 2^142113530 is an apocalyptic number.

142113530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142113530 is a deficient number, since it is larger than the sum of its proper divisors (137899798).

142113530 is a wasteful number, since it uses less digits than its factorization.

142113530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18002.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 142113530 is about 11921.1379490383. The cubic root of 142113530 is about 521.8493446219.

Adding to 142113530 its reverse (35311241), we get a palindrome (177424771).

The spelling of 142113530 in words is "one hundred forty-two million, one hundred thirteen thousand, five hundred thirty".