142245107 has 4 divisors (see below), whose sum is σ = 144577056. Its totient is φ = 139913160.

The previous prime is 142245097. The next prime is 142245127. The reversal of 142245107 is 701542241.

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

It is a cyclic number.

It is not a de Polignac number, because 142245107 - 2⁴ = 142245091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142245127) by changing a digit.

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, 1165883 + ... + 1166004.

It is an arithmetic number, because the mean of its divisors is an integer number (36144264).

Almost surely, 2^142245107 is an apocalyptic number.

142245107 is a deficient number, since it is larger than the sum of its proper divisors (2331949).

142245107 is an equidigital number, since it uses as much as digits as its factorization.

142245107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331948.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 142245107 is about 11926.6553148819. The cubic root of 142245107 is about 522.0103478031.

Adding to 142245107 its reverse (701542241), we get a palindrome (843787348).

The spelling of 142245107 in words is "one hundred forty-two million, two hundred forty-five thousand, one hundred seven".