142214445 has 24 divisors (see below), whose sum is σ = 252520632. Its totient is φ = 73996800.

The previous prime is 142214419. The next prime is 142214467. The reversal of 142214445 is 544412241.

142214445 is a `hidden beast` number, since 1 + 4 + 2 + 214 + 445 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 580644 + 141633801 = 762^2 + 11901^2 .

It is not a de Polignac number, because 142214445 - 2⁹ = 142213933 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36696 + ... + 40385.

It is an arithmetic number, because the mean of its divisors is an integer number (10521693).

Almost surely, 2^142214445 is an apocalyptic number.

142214445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142214445 is a deficient number, since it is larger than the sum of its proper divisors (110306187).

142214445 is a wasteful number, since it uses less digits than its factorization.

142214445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77133 (or 77130 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 142214445 is about 11925.3698055867. The cubic root of 142214445 is about 521.9728373588.

Adding to 142214445 its reverse (544412241), we get a palindrome (686626686).

The spelling of 142214445 in words is "one hundred forty-two million, two hundred fourteen thousand, four hundred forty-five".