142101245 has 32 divisors (see below), whose sum is σ = 209067264. Its totient is φ = 91238400.

The previous prime is 142101233. The next prime is 142101251. The reversal of 142101245 is 542101241.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-142101245 is a prime.

It is a Duffinian number.

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 31 ways as a sum of consecutive naturals, for example, 12125 + ... + 20765.

It is an arithmetic number, because the mean of its divisors is an integer number (6533352).

Almost surely, 2^142101245 is an apocalyptic number.

It is an amenable number.

142101245 is a deficient number, since it is larger than the sum of its proper divisors (66966019).

142101245 is a wasteful number, since it uses less digits than its factorization.

142101245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8693.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 142101245 is about 11920.6226766893. The cubic root of 142101245 is about 521.8343071047.

Adding to 142101245 its reverse (542101241), we get a palindrome (684202486).

The spelling of 142101245 in words is "one hundred forty-two million, one hundred one thousand, two hundred forty-five".