1145615544 has 48 divisors (see below), whose sum is σ = 3110374800. Its totient is φ = 380928384.

The previous prime is 1145615539. The next prime is 1145615593. The reversal of 1145615544 is 4455165411.

1145615544 is a `hidden beast` number, since 1 + 1 + 4 + 561 + 55 + 44 = 666.

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 = 1145615499 and 1145615508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9997 + ... + 48899.

It is an arithmetic number, because the mean of its divisors is an integer number (64799475).

Almost surely, 2^1145615544 is an apocalyptic number.

It is an amenable number.

1145615544 is an abundant number, since it is smaller than the sum of its proper divisors (1964759256).

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

1145615544 is a wasteful number, since it uses less digits than its factorization.

1145615544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39324 (or 39317 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 1145615544 is about 33846.9429047883. The cubic root of 1145615544 is about 1046.3563940741.

It can be divided in two parts, 11456 and 15544, that added together give a cube (27000 = 30³).

The spelling of 1145615544 in words is "one billion, one hundred forty-five million, six hundred fifteen thousand, five hundred forty-four".