140002142 has 16 divisors (see below), whose sum is σ = 240156672. Its totient is φ = 59962680.

The previous prime is 140002069. The next prime is 140002147. The reversal of 140002142 is 241200041.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140002147) 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, 37283 + ... + 40865.

It is an arithmetic number, because the mean of its divisors is an integer number (15009792).

Almost surely, 2^140002142 is an apocalyptic number.

140002142 is a deficient number, since it is larger than the sum of its proper divisors (100154530).

140002142 is a wasteful number, since it uses less digits than its factorization.

140002142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6383.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 140002142 is about 11832.2500818737. The cubic root of 140002142 is about 519.2520583436.

Adding to 140002142 its reverse (241200041), we get a palindrome (381202183).

The spelling of 140002142 in words is "one hundred forty million, two thousand, one hundred forty-two".