2102644151 has 4 divisors (see below), whose sum is σ = 2104527672. Its totient is φ = 2100760632.

The previous prime is 2102644129. The next prime is 2102644211. The reversal of 2102644151 is 1514462012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102644151 is a prime.

It is a super-2 number, since 2×2102644151² = 8842224851469021602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2102644151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102644351) 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, 940085 + ... + 942318.

It is an arithmetic number, because the mean of its divisors is an integer number (526131918).

Almost surely, 2^2102644151 is an apocalyptic number.

2102644151 is a deficient number, since it is larger than the sum of its proper divisors (1883521).

2102644151 is a wasteful number, since it uses less digits than its factorization.

2102644151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883520.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2102644151 is about 45854.5979264893. The cubic root of 2102644151 is about 1281.1164069761.

The spelling of 2102644151 in words is "two billion, one hundred two million, six hundred forty-four thousand, one hundred fifty-one".