1145703405 has 32 divisors (see below), whose sum is σ = 2285457408. Its totient is φ = 476136000.

The previous prime is 1145703379. The next prime is 1145703437. The reversal of 1145703405 is 5043075411.

It is not a de Polignac number, because 1145703405 - 2¹⁷ = 1145572333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 494821 + ... + 497130.

It is an arithmetic number, because the mean of its divisors is an integer number (71420544).

Almost surely, 2^1145703405 is an apocalyptic number.

1145703405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145703405 is a deficient number, since it is larger than the sum of its proper divisors (1139754003).

1145703405 is a wasteful number, since it uses less digits than its factorization.

1145703405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991977.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 1145703405 is about 33848.2407962364. The cubic root of 1145703405 is about 1046.3831428874.

Adding to 1145703405 its reverse (5043075411), we get a palindrome (6188778816).

The spelling of 1145703405 in words is "one billion, one hundred forty-five million, seven hundred three thousand, four hundred five".