2106251265 has 16 divisors (see below), whose sum is σ = 3384471168. Its totient is φ = 1118510976.

The previous prime is 2106251239. The next prime is 2106251291. The reversal of 2106251265 is 5621526012.

It is an interprime number because it is at equal distance from previous prime (2106251239) and next prime (2106251291).

It is not a de Polignac number, because 2106251265 - 2¹⁵ = 2106218497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297829 + ... + 304818.

It is an arithmetic number, because the mean of its divisors is an integer number (211529448).

Almost surely, 2^2106251265 is an apocalyptic number.

It is an amenable number.

2106251265 is a deficient number, since it is larger than the sum of its proper divisors (1278219903).

2106251265 is a wasteful number, since it uses less digits than its factorization.

2106251265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602888.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2106251265 is about 45893.9131585007. The cubic root of 2106251265 is about 1281.8485791956.

Adding to 2106251265 its reverse (5621526012), we get a palindrome (7727777277).

It can be divided in two parts, 21062 and 51265, that added together give a palindrome (72327).

The spelling of 2106251265 in words is "two billion, one hundred six million, two hundred fifty-one thousand, two hundred sixty-five".