1243801 has 8 divisors (see below), whose sum is σ = 1348424. Its totient is φ = 1140480.

The previous prime is 1243793. The next prime is 1243807. The reversal of 1243801 is 1083421.

It can be written as a sum of positive squares in 4 ways, for example, as 203401 + 1040400 = 451^2 + 1020^2 .

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 1243801 - 2³ = 1243793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243807) 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, 2935 + ... + 3331.

It is an arithmetic number, because the mean of its divisors is an integer number (168553).

2^1243801 is an apocalyptic number.

It is an amenable number.

1243801 is a deficient number, since it is larger than the sum of its proper divisors (104623).

1243801 is a wasteful number, since it uses less digits than its factorization.

1243801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1243801 is about 1115.2582660532. The cubic root of 1243801 is about 107.5433681157.

The spelling of 1243801 in words is "one million, two hundred forty-three thousand, eight hundred one".