1151323453 has 24 divisors (see below), whose sum is σ = 1429373952. Its totient is φ = 921400704.

The previous prime is 1151323451. The next prime is 1151323471. The reversal of 1151323453 is 3543231511.

It is a happy number.

It is not a de Polignac number, because 1151323453 - 2¹ = 1151323451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151323451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100350 + ... + 111232.

It is an arithmetic number, because the mean of its divisors is an integer number (59557248).

Almost surely, 2^1151323453 is an apocalyptic number.

It is an amenable number.

1151323453 is a deficient number, since it is larger than the sum of its proper divisors (278050499).

1151323453 is a wasteful number, since it uses less digits than its factorization.

1151323453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11041 (or 11034 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

The square root of 1151323453 is about 33931.1575546724. The cubic root of 1151323453 is about 1048.0913028300.

Adding to 1151323453 its reverse (3543231511), we get a palindrome (4694554964).

The spelling of 1151323453 in words is "one billion, one hundred fifty-one million, three hundred twenty-three thousand, four hundred fifty-three".