2155120014 has 8 divisors (see below), whose sum is σ = 4310240040. Its totient is φ = 718373336.

The previous prime is 2155120001. The next prime is 2155120027. The reversal of 2155120014 is 4100215512.

It is an interprime number because it is at equal distance from previous prime (2155120001) and next prime (2155120027).

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

2155120014 is an admirable number.

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, 179593329 + ... + 179593340.

It is an arithmetic number, because the mean of its divisors is an integer number (538780005).

Almost surely, 2^2155120014 is an apocalyptic number.

2155120014 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2155120014 is a wasteful number, since it uses less digits than its factorization.

2155120014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359186674.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2155120014 is about 46423.2701777891. The cubic root of 2155120014 is about 1291.6865974716.

Adding to 2155120014 its reverse (4100215512), we get a palindrome (6255335526).

The spelling of 2155120014 in words is "two billion, one hundred fifty-five million, one hundred twenty thousand, fourteen".