1143326635545 has 32 divisors (see below), whose sum is σ = 1831431013632. Its totient is φ = 609071726592.

The previous prime is 1143326635543. The next prime is 1143326635547. The reversal of 1143326635545 is 5455366233411.

It is an interprime number because it is at equal distance from previous prime (1143326635543) and next prime (1143326635547).

It is not a de Polignac number, because 1143326635545 - 2¹ = 1143326635543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143326635494 and 1143326635503.

It is not an unprimeable number, because it can be changed into a prime (1143326635543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80639497 + ... + 80653673.

It is an arithmetic number, because the mean of its divisors is an integer number (57232219176).

Almost surely, 2^{1143326635545} is an apocalyptic number.

1143326635545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143326635545 is a deficient number, since it is larger than the sum of its proper divisors (688104378087).

1143326635545 is a wasteful number, since it uses less digits than its factorization.

1143326635545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20001.

The product of its digits is 3888000, while the sum is 48.

The spelling of 1143326635545 in words is "one trillion, one hundred forty-three billion, three hundred twenty-six million, six hundred thirty-five thousand, five hundred forty-five".