13421001 has 8 divisors (see below), whose sum is σ = 19521504. Its totient is φ = 8133920.

The previous prime is 13420999. The next prime is 13421021. The reversal of 13421001 is 10012431.

It is a happy number.

13421001 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 13421001 - 2¹ = 13420999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13421021) 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, 203316 + ... + 203381.

It is an arithmetic number, because the mean of its divisors is an integer number (2440188).

Almost surely, 2^13421001 is an apocalyptic number.

13421001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13421001 is a deficient number, since it is larger than the sum of its proper divisors (6100503).

13421001 is a wasteful number, since it uses less digits than its factorization.

13421001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406711.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 13421001 is about 3663.4684385156. The cubic root of 13421001 is about 237.6447929641.

Adding to 13421001 its reverse (10012431), we get a palindrome (23433432).

The spelling of 13421001 in words is "thirteen million, four hundred twenty-one thousand, one".