2154105102 has 16 divisors (see below), whose sum is σ = 4313417040. Its totient is φ = 717167232.

The previous prime is 2154105049. The next prime is 2154105127. The reversal of 2154105102 is 2015014512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211563 + ... + 221510.

It is an arithmetic number, because the mean of its divisors is an integer number (269588565).

Almost surely, 2^2154105102 is an apocalyptic number.

2154105102 is an abundant number, since it is smaller than the sum of its proper divisors (2159311938).

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

2154105102 is a wasteful number, since it uses less digits than its factorization.

2154105102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433907.

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

The square root of 2154105102 is about 46412.3378208855. The cubic root of 2154105102 is about 1291.4838007114.

Adding to 2154105102 its reverse (2015014512), we get a palindrome (4169119614).

The spelling of 2154105102 in words is "two billion, one hundred fifty-four million, one hundred five thousand, one hundred two".