20153089 has 4 divisors (see below), whose sum is σ = 21985200. Its totient is φ = 18320980.

The previous prime is 20153051. The next prime is 20153093. The reversal of 20153089 is 98035102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20153089 - 2⁷ = 20152961 is a prime.

It is a super-2 number, since 2×20153089² = 812293992483842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20153009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916039 + ... + 916060.

It is an arithmetic number, because the mean of its divisors is an integer number (5496300).

Almost surely, 2^20153089 is an apocalyptic number.

It is an amenable number.

20153089 is a deficient number, since it is larger than the sum of its proper divisors (1832111).

20153089 is a wasteful number, since it uses less digits than its factorization.

20153089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832110.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 20153089 is about 4489.2191971433. The cubic root of 20153089 is about 272.1325811627.

The spelling of 20153089 in words is "twenty million, one hundred fifty-three thousand, eighty-nine".