1153423653 has 4 divisors (see below), whose sum is σ = 1537898208. Its totient is φ = 768949100.

The previous prime is 1153423651. The next prime is 1153423669. The reversal of 1153423653 is 3563243511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1153423653 - 2¹ = 1153423651 is a prime.

It is a super-2 number, since 2×1153423653² = 2660772246599728818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153423651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192237273 + ... + 192237278.

It is an arithmetic number, because the mean of its divisors is an integer number (384474552).

Almost surely, 2^1153423653 is an apocalyptic number.

It is an amenable number.

1153423653 is a deficient number, since it is larger than the sum of its proper divisors (384474555).

1153423653 is an equidigital number, since it uses as much as digits as its factorization.

1153423653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384474554.

The product of its digits is 32400, while the sum is 33.

The square root of 1153423653 is about 33962.0914108657. The cubic root of 1153423653 is about 1048.7282116715.

The spelling of 1153423653 in words is "one billion, one hundred fifty-three million, four hundred twenty-three thousand, six hundred fifty-three".