1243101 has 4 divisors (see below), whose sum is σ = 1657472. Its totient is φ = 828732.

The previous prime is 1243097. The next prime is 1243111. The reversal of 1243101 is 1013421.

It is a happy number.

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 1243101 - 2² = 1243097 is a prime.

It is a D-number.

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 (1243111) 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, 207181 + ... + 207186.

It is an arithmetic number, because the mean of its divisors is an integer number (414368).

2^1243101 is an apocalyptic number.

It is an amenable number.

1243101 is a deficient number, since it is larger than the sum of its proper divisors (414371).

1243101 is an equidigital number, since it uses as much as digits as its factorization.

1243101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414370.

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

The square root of 1243101 is about 1114.9443932322. The cubic root of 1243101 is about 107.5231895168.

Adding to 1243101 its reverse (1013421), we get a palindrome (2256522).

The spelling of 1243101 in words is "one million, two hundred forty-three thousand, one hundred one".