1153245203 has 8 divisors (see below), whose sum is σ = 1264674816. Its totient is φ = 1042913800.

The previous prime is 1153245173. The next prime is 1153245209. The reversal of 1153245203 is 3025423511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1153245203 - 2⁸ = 1153244947 is a prime.

It is a super-2 number, since 2×1153245203² = 2659948996485022418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153245209) 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, 272351 + ... + 276552.

It is an arithmetic number, because the mean of its divisors is an integer number (158084352).

Almost surely, 2^1153245203 is an apocalyptic number.

1153245203 is a deficient number, since it is larger than the sum of its proper divisors (111429613).

1153245203 is a wasteful number, since it uses less digits than its factorization.

1153245203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549105.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1153245203 is about 33959.4641153243. The cubic root of 1153245203 is about 1048.6741248085.

Adding to 1153245203 its reverse (3025423511), we get a palindrome (4178668714).

The spelling of 1153245203 in words is "one billion, one hundred fifty-three million, two hundred forty-five thousand, two hundred three".