142245001 has 16 divisors (see below), whose sum is σ = 159408000. Its totient is φ = 126137088.

The previous prime is 142244959. The next prime is 142245007. The reversal of 142245001 is 100542241.

142245001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 142245001 - 2¹⁵ = 142212233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142245001.

It is not an unprimeable number, because it can be changed into a prime (142245007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63171 + ... + 65383.

It is an arithmetic number, because the mean of its divisors is an integer number (9963000).

Almost surely, 2^142245001 is an apocalyptic number.

It is an amenable number.

142245001 is a deficient number, since it is larger than the sum of its proper divisors (17162999).

142245001 is a wasteful number, since it uses less digits than its factorization.

142245001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 142245001 is about 11926.6508710534. The cubic root of 142245001 is about 522.0102181370.

Adding to 142245001 its reverse (100542241), we get a palindrome (242787242).

The spelling of 142245001 in words is "one hundred forty-two million, two hundred forty-five thousand, one".