142042645 has 8 divisors (see below), whose sum is σ = 171753120. Its totient is φ = 112766160.

The previous prime is 142042643. The next prime is 142042661. The reversal of 142042645 is 546240241.

142042645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142042645 - 2¹ = 142042643 is a prime.

It is a super-2 number, since 2×142042645² = 40352225997192050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142042643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107775 + ... + 109084.

It is an arithmetic number, because the mean of its divisors is an integer number (21469140).

Almost surely, 2^142042645 is an apocalyptic number.

It is an amenable number.

142042645 is a deficient number, since it is larger than the sum of its proper divisors (29710475).

142042645 is a wasteful number, since it uses less digits than its factorization.

142042645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216995.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 142042645 is about 11918.1644979418. The cubic root of 142042645 is about 521.7625655451.

Adding to 142042645 its reverse (546240241), we get a palindrome (688282886).

The spelling of 142042645 in words is "one hundred forty-two million, forty-two thousand, six hundred forty-five".