1145431112540 has 48 divisors (see below), whose sum is σ = 2825930751840. Its totient is φ = 384480372480.

The previous prime is 1145431112533. The next prime is 1145431112591. The reversal of 1145431112540 is 452111345411.

It is a junction number, because it is equal to n+sod(n) for n = 1145431112497 and 1145431112506.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 200247335 + ... + 200253054.

It is an arithmetic number, because the mean of its divisors is an integer number (58873557330).

Almost surely, 2^{1145431112540} is an apocalyptic number.

1145431112540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145431112540 is an abundant number, since it is smaller than the sum of its proper divisors (1680499639300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145431112540 is a wasteful number, since it uses less digits than its factorization.

1145431112540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400500422 (or 400500420 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 1145431112540 its reverse (452111345411), we get a palindrome (1597542457951).

The spelling of 1145431112540 in words is "one trillion, one hundred forty-five billion, four hundred thirty-one million, one hundred twelve thousand, five hundred forty".