1153845 has 80 divisors (see below), whose sum is σ = 2648448. Its totient is φ = 466560.

The previous prime is 1153811. The next prime is 1153849. The reversal of 1153845 is 5483511.

It is not a de Polignac number, because 1153845 - 2⁸ = 1153589 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

1153845 is a lucky number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 31167 + ... + 31203.

2^1153845 is an apocalyptic number.

1153845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1153845 is an abundant number, since it is smaller than the sum of its proper divisors (1494603).

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

1153845 is a wasteful number, since it uses less digits than its factorization.

1153845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 63 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1153845 is about 1074.1717739729. The cubic root of 1153845 is about 104.8855896670.

It can be divided in two parts, 11 and 53845, that multiplied together give a palindrome (592295).

The spelling of 1153845 in words is "one million, one hundred fifty-three thousand, eight hundred forty-five".