2126001045 has 48 divisors (see below), whose sum is σ = 4129734528. Its totient is φ = 914703360.

The previous prime is 2126001043. The next prime is 2126001091. The reversal of 2126001045 is 5401006212.

It is not a de Polignac number, because 2126001045 - 2¹ = 2126001043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126001043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4686 + ... + 65375.

It is an arithmetic number, because the mean of its divisors is an integer number (86036136).

Almost surely, 2^2126001045 is an apocalyptic number.

It is an amenable number.

2126001045 is a deficient number, since it is larger than the sum of its proper divisors (2003733483).

2126001045 is a wasteful number, since it uses less digits than its factorization.

2126001045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70110 (or 70093 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2126001045 is about 46108.5788655430. The cubic root of 2126001045 is about 1285.8426435255.

Adding to 2126001045 its reverse (5401006212), we get a palindrome (7527007257).

The spelling of 2126001045 in words is "two billion, one hundred twenty-six million, one thousand, forty-five".