1421201 has 4 divisors (see below), whose sum is σ = 1433892. Its totient is φ = 1408512.

The previous prime is 1421191. The next prime is 1421213. The reversal of 1421201 is 1021241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 602176 + 819025 = 776^2 + 905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1421221) 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, 6176 + ... + 6401.

It is an arithmetic number, because the mean of its divisors is an integer number (358473).

2^1421201 is an apocalyptic number.

It is an amenable number.

1421201 is a deficient number, since it is larger than the sum of its proper divisors (12691).

1421201 is a wasteful number, since it uses less digits than its factorization.

1421201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12690.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1421201 is about 1192.1413506795. The cubic root of 1421201 is about 112.4307656312.

Adding to 1421201 its reverse (1021241), we get a palindrome (2442442).

The spelling of 1421201 in words is "one million, four hundred twenty-one thousand, two hundred one".