13421545 has 8 divisors (see below), whose sum is σ = 16257024. Its totient is φ = 10636464.

The previous prime is 13421539. The next prime is 13421563. The reversal of 13421545 is 54512431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13421545 - 2³ = 13421537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12009 + ... + 13078.

It is an arithmetic number, because the mean of its divisors is an integer number (2032128).

Almost surely, 2^13421545 is an apocalyptic number.

It is an amenable number.

13421545 is a deficient number, since it is larger than the sum of its proper divisors (2835479).

13421545 is a wasteful number, since it uses less digits than its factorization.

13421545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25199.

The product of its digits is 2400, while the sum is 25.

The square root of 13421545 is about 3663.5426843426. The cubic root of 13421545 is about 237.6480037783.

Adding to 13421545 its reverse (54512431), we get a palindrome (67933976).

The spelling of 13421545 in words is "thirteen million, four hundred twenty-one thousand, five hundred forty-five".