142452445 has 4 divisors (see below), whose sum is σ = 170942940. Its totient is φ = 113961952.

The previous prime is 142452439. The next prime is 142452451. The reversal of 142452445 is 544254241.

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

It is an interprime number because it is at equal distance from previous prime (142452439) and next prime (142452451).

It can be written as a sum of positive squares in 2 ways, for example, as 47623801 + 94828644 = 6901^2 + 9738^2 .

It is a cyclic number.

It is not a de Polignac number, because 142452445 - 2²³ = 134063837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14245240 + ... + 14245249.

It is an arithmetic number, because the mean of its divisors is an integer number (42735735).

Almost surely, 2^142452445 is an apocalyptic number.

It is an amenable number.

142452445 is a deficient number, since it is larger than the sum of its proper divisors (28490495).

142452445 is an equidigital number, since it uses as much as digits as its factorization.

142452445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28490494.

The product of its digits is 25600, while the sum is 31.

The square root of 142452445 is about 11935.3443603442. The cubic root of 142452445 is about 522.2638539736.

The spelling of 142452445 in words is "one hundred forty-two million, four hundred fifty-two thousand, four hundred forty-five".