20155014 has 32 divisors (see below), whose sum is σ = 48862080. Its totient is φ = 6107400.

The previous prime is 20154961. The next prime is 20155021. The reversal of 20155014 is 41055102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16372 + ... + 17559.

It is an arithmetic number, because the mean of its divisors is an integer number (1526940).

Almost surely, 2^20155014 is an apocalyptic number.

20155014 is an abundant number, since it is smaller than the sum of its proper divisors (28707066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20155014 is a wasteful number, since it uses less digits than its factorization.

20155014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33953 (or 33947 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 20155014 is about 4489.4335945640. The cubic root of 20155014 is about 272.1412454844.

The spelling of 20155014 in words is "twenty million, one hundred fifty-five thousand, fourteen".