1150243605 has 128 divisors (see below), whose sum is σ = 2440949760. Its totient is φ = 502951680.

The previous prime is 1150243573. The next prime is 1150243607. The reversal of 1150243605 is 5063420511.

1150243605 is a `hidden beast` number, since 1 + 1 + 50 + 2 + 4 + 3 + 605 = 666.

It is not a de Polignac number, because 1150243605 - 2⁵ = 1150243573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150243607) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2342410 + ... + 2342900.

It is an arithmetic number, because the mean of its divisors is an integer number (19069920).

Almost surely, 2^1150243605 is an apocalyptic number.

1150243605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1150243605 is an abundant number, since it is smaller than the sum of its proper divisors (1290706155).

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

1150243605 is a wasteful number, since it uses less digits than its factorization.

1150243605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1150243605 is about 33915.2414852084. The cubic root of 1150243605 is about 1047.7635254599.

The spelling of 1150243605 in words is "one billion, one hundred fifty million, two hundred forty-three thousand, six hundred five".