20155102 has 8 divisors (see below), whose sum is σ = 32981112. Its totient is φ = 9161400.

The previous prime is 20155097. The next prime is 20155117.

20155102 is nontrivially palindromic in base 10.

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

It is a plaindrome in base 16.

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, 458049 + ... + 458092.

It is an arithmetic number, because the mean of its divisors is an integer number (4122639).

Almost surely, 2^20155102 is an apocalyptic number.

20155102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20155102 is a deficient number, since it is larger than the sum of its proper divisors (12826010).

20155102 is a wasteful number, since it uses less digits than its factorization.

20155102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916154.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 20155102 is about 4489.4433953442. The cubic root of 20155102 is about 272.1416415545.

It can be divided in two parts, 2015 and 5102, that added together give a palindrome (7117).

The spelling of 20155102 in words is "twenty million, one hundred fifty-five thousand, one hundred two".