2144125511 has 8 divisors (see below), whose sum is σ = 2340835200. Its totient is φ = 1947714040.

The previous prime is 2144125483. The next prime is 2144125517. The reversal of 2144125511 is 1155214412.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2144125511 is a prime.

It is a super-2 number, since 2×2144125511² = 9194548413842022242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144125517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59381 + ... + 88398.

It is an arithmetic number, because the mean of its divisors is an integer number (292604400).

Almost surely, 2^2144125511 is an apocalyptic number.

2144125511 is a deficient number, since it is larger than the sum of its proper divisors (196709689).

2144125511 is a wasteful number, since it uses less digits than its factorization.

2144125511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149109.

The product of its digits is 1600, while the sum is 26.

The square root of 2144125511 is about 46304.7029037008. The cubic root of 2144125511 is about 1289.4863068961.

Adding to 2144125511 its reverse (1155214412), we get a palindrome (3299339923).

The spelling of 2144125511 in words is "two billion, one hundred forty-four million, one hundred twenty-five thousand, five hundred eleven".