13545469 has 4 divisors (see below), whose sum is σ = 15480544. Its totient is φ = 11610396.

The previous prime is 13545449. The next prime is 13545503. The reversal of 13545469 is 96454531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13545469 - 2⁵ = 13545437 is a prime.

It is a super-2 number, since 2×13545469² = 366959460859922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13545449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 967527 + ... + 967540.

It is an arithmetic number, because the mean of its divisors is an integer number (3870136).

Almost surely, 2^13545469 is an apocalyptic number.

It is an amenable number.

13545469 is a deficient number, since it is larger than the sum of its proper divisors (1935075).

13545469 is an equidigital number, since it uses as much as digits as its factorization.

13545469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935074.

The product of its digits is 64800, while the sum is 37.

The square root of 13545469 is about 3680.4169600740. The cubic root of 13545469 is about 238.3771824494.

It can be divided in two parts, 135454 and 69, that multiplied together give a triangular number (9346326 = T₄₃₂₃).

The spelling of 13545469 in words is "thirteen million, five hundred forty-five thousand, four hundred sixty-nine".