20013142 has 8 divisors (see below), whose sum is σ = 30051432. Its totient is φ = 9996000.

The previous prime is 20013127. The next prime is 20013179. The reversal of 20013142 is 24131002.

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, 2659 + ... + 6862.

It is an arithmetic number, because the mean of its divisors is an integer number (3756429).

Almost surely, 2^20013142 is an apocalyptic number.

20013142 is a deficient number, since it is larger than the sum of its proper divisors (10038290).

20013142 is a wasteful number, since it uses less digits than its factorization.

20013142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10574.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20013142 is about 4473.6050339743. The cubic root of 20013142 is about 271.5012034355.

Adding to 20013142 its reverse (24131002), we get a palindrome (44144144).

The spelling of 20013142 in words is "twenty million, thirteen thousand, one hundred forty-two".