1153431441 has 16 divisors (see below), whose sum is σ = 1748528320. Its totient is φ = 751070880.

The previous prime is 1153431437. The next prime is 1153431443. The reversal of 1153431441 is 1441343511.

It is not a de Polignac number, because 1153431441 - 2² = 1153431437 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 (1153431443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495580 + ... + 497901.

It is an arithmetic number, because the mean of its divisors is an integer number (109283020).

Almost surely, 2^1153431441 is an apocalyptic number.

It is an amenable number.

1153431441 is a deficient number, since it is larger than the sum of its proper divisors (595096879).

1153431441 is an equidigital number, since it uses as much as digits as its factorization.

1153431441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993533 (or 993527 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1153431441 is about 33962.2060679220. The cubic root of 1153431441 is about 1048.7305720291.

Adding to 1153431441 its reverse (1441343511), we get a palindrome (2594774952).

The spelling of 1153431441 in words is "one billion, one hundred fifty-three million, four hundred thirty-one thousand, four hundred forty-one".