140512142 has 8 divisors (see below), whose sum is σ = 210965376. Its totient is φ = 70190352.

The previous prime is 140512139. The next prime is 140512159. The reversal of 140512142 is 241215041.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30143 + ... + 34490.

It is an arithmetic number, because the mean of its divisors is an integer number (26370672).

Almost surely, 2^140512142 is an apocalyptic number.

140512142 is a deficient number, since it is larger than the sum of its proper divisors (70453234).

140512142 is a wasteful number, since it uses less digits than its factorization.

140512142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65722.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 140512142 is about 11853.7817594218. The cubic root of 140512142 is about 519.8818049906.

Adding to 140512142 its reverse (241215041), we get a palindrome (381727183).

The spelling of 140512142 in words is "one hundred forty million, five hundred twelve thousand, one hundred forty-two".