20003158 has 16 divisors (see below), whose sum is σ = 34388640. Its totient is φ = 8548416.

The previous prime is 20003149. The next prime is 20003161. The reversal of 20003158 is 85130002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3610 + ... + 7282.

It is an arithmetic number, because the mean of its divisors is an integer number (2149290).

Almost surely, 2^20003158 is an apocalyptic number.

20003158 is a deficient number, since it is larger than the sum of its proper divisors (14385482).

20003158 is a wasteful number, since it uses less digits than its factorization.

20003158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 20003158 is about 4472.4890161967. The cubic root of 20003158 is about 271.4560477923.

The spelling of 20003158 in words is "twenty million, three thousand, one hundred fifty-eight".