1153918272 has 56 divisors (see below), whose sum is σ = 3287934496. Its totient is φ = 355051008.

The previous prime is 1153918267. The next prime is 1153918289. The reversal of 1153918272 is 2728193511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 1153918272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228658 + ... + 233649.

It is an arithmetic number, because the mean of its divisors is an integer number (58713116).

Almost surely, 2^1153918272 is an apocalyptic number.

1153918272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1153918272 is an abundant number, since it is smaller than the sum of its proper divisors (2134016224).

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

1153918272 is a wasteful number, since it uses less digits than its factorization.

1153918272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462335 (or 462325 counting only the distinct ones).

The product of its digits is 30240, while the sum is 39.

The square root of 1153918272 is about 33969.3725582325. The cubic root of 1153918272 is about 1048.8780978440.

The spelling of 1153918272 in words is "one billion, one hundred fifty-three million, nine hundred eighteen thousand, two hundred seventy-two".