13125458 has 16 divisors (see below), whose sum is σ = 20585880. Its totient is φ = 6268416.

The previous prime is 13125457. The next prime is 13125461. The reversal of 13125458 is 85452131.

It can be written as a sum of positive squares in 4 ways, for example, as 10259209 + 2866249 = 3203^2 + 1693^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 13125458.

It is not an unprimeable number, because it can be changed into a prime (13125451) 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, 4460 + ... + 6792.

Almost surely, 2^13125458 is an apocalyptic number.

13125458 is a deficient number, since it is larger than the sum of its proper divisors (7460422).

13125458 is a wasteful number, since it uses less digits than its factorization.

13125458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461.

The product of its digits is 4800, while the sum is 29.

The square root of 13125458 is about 3622.9073960012. The cubic root of 13125458 is about 235.8874427348.

Adding to 13125458 its reverse (85452131), we get a palindrome (98577589).

The spelling of 13125458 in words is "thirteen million, one hundred twenty-five thousand, four hundred fifty-eight".