1145557582 has 32 divisors (see below), whose sum is σ = 1929378528. Its totient is φ = 506653056.

The previous prime is 1145557559. The next prime is 1145557583. The reversal of 1145557582 is 2857555411.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145557583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49588 + ... + 68920.

It is an arithmetic number, because the mean of its divisors is an integer number (60293079).

Almost surely, 2^1145557582 is an apocalyptic number.

1145557582 is a deficient number, since it is larger than the sum of its proper divisors (783820946).

1145557582 is a wasteful number, since it uses less digits than its factorization.

1145557582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19444.

The product of its digits is 280000, while the sum is 43.

The square root of 1145557582 is about 33846.0866571011. The cubic root of 1145557582 is about 1046.3387471033.

The spelling of 1145557582 in words is "one billion, one hundred forty-five million, five hundred fifty-seven thousand, five hundred eighty-two".