13491425 has 12 divisors (see below), whose sum is σ = 17610480. Its totient is φ = 10224720.

The previous prime is 13491403. The next prime is 13491433. The reversal of 13491425 is 52419431.

It is not a de Polignac number, because 13491425 - 2¹⁶ = 13425889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13727 + ... + 14676.

It is an arithmetic number, because the mean of its divisors is an integer number (1467540).

Almost surely, 2^13491425 is an apocalyptic number.

It is an amenable number.

13491425 is a deficient number, since it is larger than the sum of its proper divisors (4119055).

13491425 is a wasteful number, since it uses less digits than its factorization.

13491425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28432 (or 28427 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 13491425 is about 3673.0675191180. The cubic root of 13491425 is about 238.0597324357.

It can be divided in two parts, 13 and 491425, that multiplied together give a triangular number (6388525 = T₃₅₇₄).

The spelling of 13491425 in words is "thirteen million, four hundred ninety-one thousand, four hundred twenty-five".