1149539800 has 24 divisors (see below), whose sum is σ = 2672680500. Its totient is φ = 459815840.

The previous prime is 1149539789. The next prime is 1149539819. The reversal of 1149539800 is 89359411.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2873650 + ... + 2874049.

Almost surely, 2^1149539800 is an apocalyptic number.

1149539800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1149539800 is an abundant number, since it is smaller than the sum of its proper divisors (1523140700).

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

1149539800 is a wasteful number, since it uses less digits than its factorization.

1149539800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5747715 (or 5747706 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 1149539800 is about 33904.8639578453. The cubic root of 1149539800 is about 1047.5497818497.

The spelling of 1149539800 in words is "one billion, one hundred forty-nine million, five hundred thirty-nine thousand, eight hundred".