1045305511 has 4 divisors (see below), whose sum is σ = 1045439512. Its totient is φ = 1045171512.

The previous prime is 1045305509. The next prime is 1045305517. The reversal of 1045305511 is 1155035401.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1045305511 - 2¹ = 1045305509 is a prime.

It is a super-2 number, since 2×1045305511² = 2185327222653942242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045305517) 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, 54525 + ... + 71158.

It is an arithmetic number, because the mean of its divisors is an integer number (261359878).

Almost surely, 2^1045305511 is an apocalyptic number.

1045305511 is a deficient number, since it is larger than the sum of its proper divisors (134001).

1045305511 is an equidigital number, since it uses as much as digits as its factorization.

1045305511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134000.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1045305511 is about 32331.1848066228. The cubic root of 1045305511 is about 1014.8793440504.

The spelling of 1045305511 in words is "one billion, forty-five million, three hundred five thousand, five hundred eleven".