1200261 has 4 divisors (see below), whose sum is σ = 1600352. Its totient is φ = 800172.

The previous prime is 1200253. The next prime is 1200307. The reversal of 1200261 is 1620021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1200261 - 2³ = 1200253 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200041 + ... + 200046.

It is an arithmetic number, because the mean of its divisors is an integer number (400088).

2^1200261 is an apocalyptic number.

It is an amenable number.

1200261 is a deficient number, since it is larger than the sum of its proper divisors (400091).

1200261 is an equidigital number, since it uses as much as digits as its factorization.

1200261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400090.

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

The square root of 1200261 is about 1095.5642381896. The cubic root of 1200261 is about 106.2735606344.

Adding to 1200261 its reverse (1620021), we get a palindrome (2820282).

The spelling of 1200261 in words is "one million, two hundred thousand, two hundred sixty-one".