13145454 has 108 divisors (see below), whose sum is σ = 36493704. Its totient is φ = 3348864.

The previous prime is 13145449. The next prime is 13145479. The reversal of 13145454 is 45454131.

It is a happy number.

13145454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13145454² = 345605921732232, which contains 22 as substring.

Its product of digits (4800) is a multiple of the sum of its prime divisors (48).

13145454 is a modest number, since divided by 5454 gives 1314 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 691857 + ... + 691875.

Almost surely, 2^13145454 is an apocalyptic number.

13145454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13145454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18246852).

13145454 is an abundant number, since it is smaller than the sum of its proper divisors (23348250).

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

13145454 is a wasteful number, since it uses less digits than its factorization.

13145454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 48 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 13145454 is about 3625.6660077839. Note that the first 3 decimals coincide. The cubic root of 13145454 is about 236.0071696567.

Adding to 13145454 its reverse (45454131), we get a palindrome (58599585).

The spelling of 13145454 in words is "thirteen million, one hundred forty-five thousand, four hundred fifty-four".