1153431 has 6 divisors (see below), whose sum is σ = 1666080. Its totient is φ = 768948.

The previous prime is 1153429. The next prime is 1153441. The reversal of 1153431 is 1343511.

It is not a de Polignac number, because 1153431 - 2¹ = 1153429 is a prime.

It is a super-2 number, since 2×1153431² = 2660806143522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153421) 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 5 ways as a sum of consecutive naturals, for example, 64071 + ... + 64088.

It is an arithmetic number, because the mean of its divisors is an integer number (277680).

2^1153431 is an apocalyptic number.

1153431 is a deficient number, since it is larger than the sum of its proper divisors (512649).

1153431 is a wasteful number, since it uses less digits than its factorization.

1153431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128165 (or 128162 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 1153431 is about 1073.9790500750. The cubic root of 1153431 is about 104.8730438373.

Adding to 1153431 its reverse (1343511), we get a palindrome (2496942).

The spelling of 1153431 in words is "one million, one hundred fifty-three thousand, four hundred thirty-one".