142245645 has 16 divisors (see below), whose sum is σ = 228484800. Its totient is φ = 75567104.

The previous prime is 142245619. The next prime is 142245703. The reversal of 142245645 is 546542241.

It is a cyclic number.

It is not a de Polignac number, because 142245645 - 2⁷ = 142245517 is a prime.

It is a super-3 number, since 3×142245645³ (a number of 25 digits) contains 333 as substring.

It is a congruent 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, 14595 + ... + 22304.

It is an arithmetic number, because the mean of its divisors is an integer number (14280300).

Almost surely, 2^142245645 is an apocalyptic number.

142245645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142245645 is a deficient number, since it is larger than the sum of its proper divisors (86239155).

142245645 is a wasteful number, since it uses less digits than its factorization.

142245645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37164.

The product of its digits is 38400, while the sum is 33.

The square root of 142245645 is about 11926.6778693817. The cubic root of 142245645 is about 522.0110059188.

Adding to 142245645 its reverse (546542241), we get a palindrome (688787886).

The spelling of 142245645 in words is "one hundred forty-two million, two hundred forty-five thousand, six hundred forty-five".