142162445 has 4 divisors (see below), whose sum is σ = 170594940. Its totient is φ = 113729952.

The previous prime is 142162417. The next prime is 142162453. The reversal of 142162445 is 544261241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544261241 = 29 ⋅18767629.

It can be written as a sum of positive squares in 2 ways, for example, as 97259044 + 44903401 = 9862^2 + 6701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142162445 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14216240 + ... + 14216249.

It is an arithmetic number, because the mean of its divisors is an integer number (42648735).

Almost surely, 2^142162445 is an apocalyptic number.

It is an amenable number.

142162445 is a deficient number, since it is larger than the sum of its proper divisors (28432495).

142162445 is an equidigital number, since it uses as much as digits as its factorization.

142162445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28432494.

The product of its digits is 7680, while the sum is 29.

The square root of 142162445 is about 11923.1893803630. The cubic root of 142162445 is about 521.9092106848.

It can be divided in two parts, 14216 and 2445, that added together give a palindrome (16661).

The spelling of 142162445 in words is "one hundred forty-two million, one hundred sixty-two thousand, four hundred forty-five".