1158653453 has 4 divisors (see below), whose sum is σ = 1161013728. Its totient is φ = 1156293180.

The previous prime is 1158653449. The next prime is 1158653467. The reversal of 1158653453 is 3543568511.

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 1158653453 - 2² = 1158653449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1158653453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158653413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1179401 + ... + 1180382.

It is an arithmetic number, because the mean of its divisors is an integer number (290253432).

Almost surely, 2^1158653453 is an apocalyptic number.

It is an amenable number.

1158653453 is a deficient number, since it is larger than the sum of its proper divisors (2360275).

1158653453 is an equidigital number, since it uses as much as digits as its factorization.

1158653453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360274.

The product of its digits is 216000, while the sum is 41.

The square root of 1158653453 is about 34038.9990011457. Note that the first 3 decimals coincide. The cubic root of 1158653453 is about 1050.3108536917.

It can be divided in two parts, 115 and 8653453, that added together give a palindrome (8653568).

The spelling of 1158653453 in words is "one billion, one hundred fifty-eight million, six hundred fifty-three thousand, four hundred fifty-three".