1153953 has 16 divisors (see below), whose sum is σ = 1734400. Its totient is φ = 758160.

The previous prime is 1153921. The next prime is 1153967. The reversal of 1153953 is 3593511.

It is not a de Polignac number, because 1153953 - 2⁵ = 1153921 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1863 + ... + 2403.

It is an arithmetic number, because the mean of its divisors is an integer number (108400).

2^1153953 is an apocalyptic number.

It is an amenable number.

1153953 is a deficient number, since it is larger than the sum of its proper divisors (580447).

1153953 is an equidigital number, since it uses as much as digits as its factorization.

1153953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 623 counting only the distinct ones).

The product of its digits is 2025, while the sum is 27.

The square root of 1153953 is about 1074.2220440859. Note that the first 3 decimals coincide. The cubic root of 1153953 is about 104.8888619985. Note that the first 4 decimals are identical.

The spelling of 1153953 in words is "one million, one hundred fifty-three thousand, nine hundred fifty-three".