1149623136 has 36 divisors (see below), whose sum is σ = 3269241612. Its totient is φ = 383207616.

The previous prime is 1149623077. The next prime is 1149623143. The reversal of 1149623136 is 6313269411.

1149623136 is a `hidden beast` number, since 1 + 14 + 9 + 623 + 13 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1149623136.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1995586 + ... + 1996161.

It is an arithmetic number, because the mean of its divisors is an integer number (90812267).

Almost surely, 2^1149623136 is an apocalyptic number.

1149623136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1149623136 is an abundant number, since it is smaller than the sum of its proper divisors (2119618476).

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

1149623136 is a wasteful number, since it uses less digits than its factorization.

1149623136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991763 (or 3991752 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1149623136 is about 33906.0929037835. The cubic root of 1149623136 is about 1047.5750953125.

The spelling of 1149623136 in words is "one billion, one hundred forty-nine million, six hundred twenty-three thousand, one hundred thirty-six".