13525434 has 32 divisors (see below), whose sum is σ = 32370240. Its totient is φ = 4161456.

The previous prime is 13525411. The next prime is 13525453. The reversal of 13525434 is 43452531.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13525398 and 13525407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8932 + ... + 10335.

It is an arithmetic number, because the mean of its divisors is an integer number (1011570).

Almost surely, 2^13525434 is an apocalyptic number.

13525434 is an abundant number, since it is smaller than the sum of its proper divisors (18844806).

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

13525434 is a wasteful number, since it uses less digits than its factorization.

13525434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19291 (or 19285 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 13525434 is about 3677.6941145234. The cubic root of 13525434 is about 238.2595971657.

Adding to 13525434 its reverse (43452531), we get a palindrome (56977965).

It can be divided in two parts, 1352 and 5434, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 13525434 in words is "thirteen million, five hundred twenty-five thousand, four hundred thirty-four".