1153956 has 48 divisors (see below), whose sum is σ = 2911104. Its totient is φ = 354816.

The previous prime is 1153921. The next prime is 1153967. The reversal of 1153956 is 6593511.

It is a super-2 number, since 2×1153956² = 2663228899872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10156 + ... + 10268.

It is an arithmetic number, because the mean of its divisors is an integer number (60648).

2^1153956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1153956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1455552).

1153956 is an abundant number, since it is smaller than the sum of its proper divisors (1757148).

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

1153956 is a wasteful number, since it uses less digits than its factorization.

1153956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 178 counting only the distinct ones).

The product of its digits is 4050, while the sum is 30.

The square root of 1153956 is about 1074.2234404443. The cubic root of 1153956 is about 104.8889528937. Note that the first 3 decimals are identical.

The spelling of 1153956 in words is "one million, one hundred fifty-three thousand, nine hundred fifty-six".