142161745 has 16 divisors (see below), whose sum is σ = 188028288. Its totient is φ = 102320640.

The previous prime is 142161737. The next prime is 142161751. The reversal of 142161745 is 547161241.

142161745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142161745 - 2³ = 142161737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7989 + ... + 18658.

It is an arithmetic number, because the mean of its divisors is an integer number (11751768).

Almost surely, 2^142161745 is an apocalyptic number.

It is an amenable number.

142161745 is a deficient number, since it is larger than the sum of its proper divisors (45866543).

142161745 is a wasteful number, since it uses less digits than its factorization.

142161745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26760.

The product of its digits is 6720, while the sum is 31.

The square root of 142161745 is about 11923.1600257650. The cubic root of 142161745 is about 521.9083540660.

The spelling of 142161745 in words is "one hundred forty-two million, one hundred sixty-one thousand, seven hundred forty-five".