2043001265 has 16 divisors (see below), whose sum is σ = 2596872960. Its totient is φ = 1537632000.

The previous prime is 2043001249. The next prime is 2043001291. The reversal of 2043001265 is 5621003402.

It is not a de Polignac number, because 2043001265 - 2⁴ = 2043001249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2043001265.

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, 401306 + ... + 406364.

It is an arithmetic number, because the mean of its divisors is an integer number (162304560).

Almost surely, 2^2043001265 is an apocalyptic number.

It is an amenable number.

2043001265 is a deficient number, since it is larger than the sum of its proper divisors (553871695).

2043001265 is a wasteful number, since it uses less digits than its factorization.

2043001265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9832.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2043001265 is about 45199.5715134557. The cubic root of 2043001265 is about 1268.8867970629.

Adding to 2043001265 its reverse (5621003402), we get a palindrome (7664004667).

The spelling of 2043001265 in words is "two billion, forty-three million, one thousand, two hundred sixty-five".