142975345 has 4 divisors (see below), whose sum is σ = 171570420. Its totient is φ = 114380272.

The previous prime is 142975333. The next prime is 142975367. The reversal of 142975345 is 543579241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64705936 + 78269409 = 8044^2 + 8847^2 .

It is a cyclic number.

It is not a de Polignac number, because 142975345 - 2¹¹ = 142973297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142975298 and 142975307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14297530 + ... + 14297539.

It is an arithmetic number, because the mean of its divisors is an integer number (42892605).

Almost surely, 2^142975345 is an apocalyptic number.

It is an amenable number.

142975345 is a deficient number, since it is larger than the sum of its proper divisors (28595075).

142975345 is an equidigital number, since it uses as much as digits as its factorization.

142975345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28595074.

The product of its digits is 151200, while the sum is 40.

The square root of 142975345 is about 11957.2298213257. The cubic root of 142975345 is about 522.9020980864.

The spelling of 142975345 in words is "one hundred forty-two million, nine hundred seventy-five thousand, three hundred forty-five".