1153213451 has 16 divisors (see below), whose sum is σ = 1250340000. Its totient is φ = 1057321728.

The previous prime is 1153213433. The next prime is 1153213463. The reversal of 1153213451 is 1543123511.

It is a cyclic number.

It is not a de Polignac number, because 1153213451 - 2¹⁸ = 1152951307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1153213451.

It is not an unprimeable number, because it can be changed into a prime (1153213651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2310800 + ... + 2311298.

It is an arithmetic number, because the mean of its divisors is an integer number (78146250).

Almost surely, 2^1153213451 is an apocalyptic number.

1153213451 is a deficient number, since it is larger than the sum of its proper divisors (97126549).

1153213451 is a wasteful number, since it uses less digits than its factorization.

1153213451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358.

The product of its digits is 1800, while the sum is 26.

The square root of 1153213451 is about 33958.9966135632. The cubic root of 1153213451 is about 1048.6645004296.

Adding to 1153213451 its reverse (1543123511), we get a palindrome (2696336962).

The spelling of 1153213451 in words is "one billion, one hundred fifty-three million, two hundred thirteen thousand, four hundred fifty-one".