1153430454 has 64 divisors (see below), whose sum is σ = 2734571520. Its totient is φ = 320436000.

The previous prime is 1153430449. The next prime is 1153430483. The reversal of 1153430454 is 4540343511.

It is a super-2 number, since 2×1153430454² = 2660803624429292232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24039 + ... + 53709.

It is an arithmetic number, because the mean of its divisors is an integer number (42727680).

Almost surely, 2^1153430454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1153430454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1367285760).

1153430454 is an abundant number, since it is smaller than the sum of its proper divisors (1581141066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1153430454 is a wasteful number, since it uses less digits than its factorization.

1153430454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29737.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1153430454 is about 33962.1915370607. The cubic root of 1153430454 is about 1048.7302728935.

Adding to 1153430454 its reverse (4540343511), we get a palindrome (5693773965).

The spelling of 1153430454 in words is "one billion, one hundred fifty-three million, four hundred thirty thousand, four hundred fifty-four".