13421573 has 8 divisors (see below), whose sum is σ = 14670720. Its totient is φ = 12177280.

The previous prime is 13421567. The next prime is 13421579. The reversal of 13421573 is 37512431.

It is an interprime number because it is at equal distance from previous prime (13421567) and next prime (13421579).

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 13421573 - 2⁶ = 13421509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421579) 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, 7061 + ... + 8757.

It is an arithmetic number, because the mean of its divisors is an integer number (1833840).

Almost surely, 2^13421573 is an apocalyptic number.

It is an amenable number.

13421573 is a deficient number, since it is larger than the sum of its proper divisors (1249147).

13421573 is a wasteful number, since it uses less digits than its factorization.

13421573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427.

The product of its digits is 2520, while the sum is 26.

The square root of 13421573 is about 3663.5465057782. The cubic root of 13421573 is about 237.6481690385.

The spelling of 13421573 in words is "thirteen million, four hundred twenty-one thousand, five hundred seventy-three".