142640614 has 4 divisors (see below), whose sum is σ = 213960924. Its totient is φ = 71320306.

The previous prime is 142640611. The next prime is 142640621. The reversal of 142640614 is 416046241.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142640611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35660152 + ... + 35660155.

It is an arithmetic number, because the mean of its divisors is an integer number (53490231).

Almost surely, 2^142640614 is an apocalyptic number.

142640614 is a deficient number, since it is larger than the sum of its proper divisors (71320310).

142640614 is an equidigital number, since it uses as much as digits as its factorization.

142640614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71320309.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 142640614 is about 11943.2246064453. The cubic root of 142640614 is about 522.4937099279.

Adding to 142640614 its reverse (416046241), we get a palindrome (558686855).

The spelling of 142640614 in words is "one hundred forty-two million, six hundred forty thousand, six hundred fourteen".