142912445 has 8 divisors (see below), whose sum is σ = 184686936. Its totient is φ = 105535296.

The previous prime is 142912423. The next prime is 142912481. The reversal of 142912445 is 544219241.

142912445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6980164 + 135932281 = 2642^2 + 11659^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142912445 - 2⁶ = 142912381 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1099262 + ... + 1099391.

It is an arithmetic number, because the mean of its divisors is an integer number (23085867).

Almost surely, 2^142912445 is an apocalyptic number.

It is an amenable number.

142912445 is a deficient number, since it is larger than the sum of its proper divisors (41774491).

142912445 is a wasteful number, since it uses less digits than its factorization.

142912445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198671.

The product of its digits is 11520, while the sum is 32.

The square root of 142912445 is about 11954.5993241095. The cubic root of 142912445 is about 522.8254056879.

The spelling of 142912445 in words is "one hundred forty-two million, nine hundred twelve thousand, four hundred forty-five".