1143120640545 has 48 divisors (see below), whose sum is σ = 2226600230400. Its totient is φ = 538298944128.

The previous prime is 1143120640531. The next prime is 1143120640547. The reversal of 1143120640545 is 5450460213411.

1143120640545 is a `hidden beast` number, since 1 + 1 + 4 + 3 + 1 + 2 + 0 + 640 + 5 + 4 + 5 = 666.

It is not a de Polignac number, because 1143120640545 - 2¹⁵ = 1143120607777 is a prime.

It is a super-2 number, since 2×1143120640545² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1143120640547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42465945 + ... + 42492854.

It is an arithmetic number, because the mean of its divisors is an integer number (46387504800).

Almost surely, 2^{1143120640545} is an apocalyptic number.

1143120640545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143120640545 is a deficient number, since it is larger than the sum of its proper divisors (1083479589855).

1143120640545 is a wasteful number, since it uses less digits than its factorization.

1143120640545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84958846 (or 84958843 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 1143120640545 its reverse (5450460213411), we get a palindrome (6593580853956).

The spelling of 1143120640545 in words is "one trillion, one hundred forty-three billion, one hundred twenty million, six hundred forty thousand, five hundred forty-five".