1155249464 has 16 divisors (see below), whose sum is σ = 2167704720. Its totient is φ = 577194880.

The previous prime is 1155249463. The next prime is 1155249479. The reversal of 1155249464 is 4649425511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155249463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42164 + ... + 63939.

It is an arithmetic number, because the mean of its divisors is an integer number (135481545).

Almost surely, 2^1155249464 is an apocalyptic number.

It is an amenable number.

1155249464 is a deficient number, since it is larger than the sum of its proper divisors (1012455256).

1155249464 is a wasteful number, since it uses less digits than its factorization.

1155249464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107470 (or 107466 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 1155249464 is about 33988.9609138026. The cubic root of 1155249464 is about 1049.2812810936.

It can be divided in two parts, 11552 and 49464, that added together give a palindrome (61016).

The spelling of 1155249464 in words is "one billion, one hundred fifty-five million, two hundred forty-nine thousand, four hundred sixty-four".