1153455 has 16 divisors (see below), whose sum is σ = 1862784. Its totient is φ = 609440.

The previous prime is 1153441. The next prime is 1153457. The reversal of 1153455 is 5543511.

It is not a de Polignac number, because 1153455 - 2⁸ = 1153199 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153457) 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, 1672 + ... + 2258.

It is an arithmetic number, because the mean of its divisors is an integer number (116424).

2^1153455 is an apocalyptic number.

1153455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1153455 is a deficient number, since it is larger than the sum of its proper divisors (709329).

1153455 is a wasteful number, since it uses less digits than its factorization.

1153455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726.

The product of its digits is 1500, while the sum is 24.

The square root of 1153455 is about 1073.9902234192. The cubic root of 1153455 is about 104.8737712137.

Adding to 1153455 its reverse (5543511), we get a palindrome (6696966).

It can be divided in two parts, 115 and 3455, that added together give a triangular number (3570 = T₈₄).

The spelling of 1153455 in words is "one million, one hundred fifty-three thousand, four hundred fifty-five".