1153550 has 12 divisors (see below), whose sum is σ = 2145696. Its totient is φ = 461400.

The previous prime is 1153531. The next prime is 1153553. The reversal of 1153550 is 553511.

It is a happy number.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11486 + ... + 11585.

It is an arithmetic number, because the mean of its divisors is an integer number (178808).

2^1153550 is an apocalyptic number.

1153550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1153550 is a deficient number, since it is larger than the sum of its proper divisors (992146).

1153550 is a wasteful number, since it uses less digits than its factorization.

1153550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23083 (or 23078 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 1153550 is about 1074.0344500993. The cubic root of 1153550 is about 104.8766503131.

The spelling of 1153550 in words is "one million, one hundred fifty-three thousand, five hundred fifty".