20158954 has 8 divisors (see below), whose sum is σ = 30532320. Its totient is φ = 9981516.

The previous prime is 20158937. The next prime is 20158961. The reversal of 20158954 is 45985102.

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

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, 48724 + ... + 49135.

It is an arithmetic number, because the mean of its divisors is an integer number (3816540).

Almost surely, 2^20158954 is an apocalyptic number.

20158954 is a deficient number, since it is larger than the sum of its proper divisors (10373366).

20158954 is a wasteful number, since it uses less digits than its factorization.

20158954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97964.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 20158954 is about 4489.8723812599. The cubic root of 20158954 is about 272.1589774930.

It can be divided in two parts, 20158 and 954, that added together give a palindrome (21112).

The spelling of 20158954 in words is "twenty million, one hundred fifty-eight thousand, nine hundred fifty-four".