1153440213 has 8 divisors (see below), whose sum is σ = 1573686048. Its totient is φ = 751077264.

The previous prime is 1153440203. The next prime is 1153440241. The reversal of 1153440213 is 3120443511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1153440213 - 2⁹ = 1153439701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153440203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4470570 + ... + 4470827.

It is an arithmetic number, because the mean of its divisors is an integer number (196710756).

Almost surely, 2^1153440213 is an apocalyptic number.

It is an amenable number.

1153440213 is a deficient number, since it is larger than the sum of its proper divisors (420245835).

1153440213 is an equidigital number, since it uses as much as digits as its factorization.

1153440213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8941443.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1153440213 is about 33962.3352112307. The cubic root of 1153440213 is about 1048.7332306010.

Adding to 1153440213 its reverse (3120443511), we get a palindrome (4273883724).

The spelling of 1153440213 in words is "one billion, one hundred fifty-three million, four hundred forty thousand, two hundred thirteen".