1145023515540 has 72 divisors (see below), whose sum is σ = 3486444369408. Its totient is φ = 304178604480.

The previous prime is 1145023515521. The next prime is 1145023515563. The reversal of 1145023515540 is 455153205411.

1145023515540 is a `hidden beast` number, since 1 + 1 + 4 + 50 + 2 + 3 + 51 + 554 + 0 = 666.

It is a super-2 number, since 2×1145023515540² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1145023515495 and 1145023515504.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 12046276 + ... + 12140955.

It is an arithmetic number, because the mean of its divisors is an integer number (48422838464).

Almost surely, 2^{1145023515540} is an apocalyptic number.

1145023515540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145023515540 is an abundant number, since it is smaller than the sum of its proper divisors (2341420853868).

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

1145023515540 is a wasteful number, since it uses less digits than its factorization.

1145023515540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24187509 (or 24187504 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 1145023515540 in words is "one trillion, one hundred forty-five billion, twenty-three million, five hundred fifteen thousand, five hundred forty".