20291095 has 16 divisors (see below), whose sum is σ = 26791200. Its totient is φ = 14752320.

The previous prime is 20291087. The next prime is 20291119. The reversal of 20291095 is 59019202.

It is not a de Polignac number, because 20291095 - 2³ = 20291087 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5131 + ... + 8179.

It is an arithmetic number, because the mean of its divisors is an integer number (1674450).

Almost surely, 2^20291095 is an apocalyptic number.

20291095 is a deficient number, since it is larger than the sum of its proper divisors (6500105).

20291095 is an equidigital number, since it uses as much as digits as its factorization.

20291095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087 (or 3065 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 20291095 is about 4504.5637968620. The cubic root of 20291095 is about 272.7523459945.

The spelling of 20291095 in words is "twenty million, two hundred ninety-one thousand, ninety-five".