1145787505 has 16 divisors (see below), whose sum is σ = 1461891024. Its totient is φ = 859115520.

The previous prime is 1145787499. The next prime is 1145787529. The reversal of 1145787505 is 5057875411.

It can be written as a sum of positive squares in 8 ways, for example, as 3415104 + 1142372401 = 1848^2 + 33799^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1145787505 is a prime.

It is a super-2 number, since 2×1145787505² = 2625658013228250050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7482 + ... + 48451.

It is an arithmetic number, because the mean of its divisors is an integer number (91368189).

Almost surely, 2^1145787505 is an apocalyptic number.

It is an amenable number.

1145787505 is a deficient number, since it is larger than the sum of its proper divisors (316103519).

1145787505 is a wasteful number, since it uses less digits than its factorization.

1145787505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56196.

The product of its (nonzero) digits is 196000, while the sum is 43.

The square root of 1145787505 is about 33849.4830832023. The cubic root of 1145787505 is about 1046.4087454034.

The spelling of 1145787505 in words is "one billion, one hundred forty-five million, seven hundred eighty-seven thousand, five hundred five".