1005145511 has 8 divisors (see below), whose sum is σ = 1029021840. Its totient is φ = 981292032.

The previous prime is 1005145501. The next prime is 1005145513. The reversal of 1005145511 is 1155415001.

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

It is a cyclic number.

It is not a de Polignac number, because 1005145511 - 2⁶ = 1005145447 is a prime.

It is a super-2 number, since 2×1005145511² = 2020634996566902242, 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 (1005145513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111281 + ... + 119973.

It is an arithmetic number, because the mean of its divisors is an integer number (128627730).

Almost surely, 2^1005145511 is an apocalyptic number.

1005145511 is a deficient number, since it is larger than the sum of its proper divisors (23876329).

1005145511 is an equidigital number, since it uses as much as digits as its factorization.

1005145511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11425.

The product of its (nonzero) digits is 500, while the sum is 23.

The square root of 1005145511 is about 31704.0298858047. The cubic root of 1005145511 is about 1001.7122369048.

The spelling of 1005145511 in words is "one billion, five million, one hundred forty-five thousand, five hundred eleven".