142712330 has 16 divisors (see below), whose sum is σ = 263825640. Its totient is φ = 55541952.

The previous prime is 142712321. The next prime is 142712347. The reversal of 142712330 is 33217241.

It can be written as a sum of positive squares in 4 ways, for example, as 140161921 + 2550409 = 11839^2 + 1597^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142712296 and 142712305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192485 + ... + 193224.

Almost surely, 2^142712330 is an apocalyptic number.

142712330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142712330 is a deficient number, since it is larger than the sum of its proper divisors (121113310).

142712330 is a wasteful number, since it uses less digits than its factorization.

142712330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385753.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 142712330 is about 11946.2266008979. The cubic root of 142712330 is about 522.5812606839.

Adding to 142712330 its reverse (33217241), we get a palindrome (175929571).

The spelling of 142712330 in words is "one hundred forty-two million, seven hundred twelve thousand, three hundred thirty".