1361261 has 8 divisors (see below), whose sum is σ = 1517184. Its totient is φ = 1210720.

The previous prime is 1361197. The next prime is 1361273. The reversal of 1361261 is 1621631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1361261 - 2⁶ = 1361197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800 + ... + 1833.

It is an arithmetic number, because the mean of its divisors is an integer number (189648).

2^1361261 is an apocalyptic number.

1361261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1361261 is a deficient number, since it is larger than the sum of its proper divisors (155923).

1361261 is a wasteful number, since it uses less digits than its factorization.

1361261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691.

The product of its digits is 216, while the sum is 20.

The square root of 1361261 is about 1166.7309029935. The cubic root of 1361261 is about 110.8273972487.

Adding to 1361261 its reverse (1621631), we get a palindrome (2982892).

The spelling of 1361261 in words is "one million, three hundred sixty-one thousand, two hundred sixty-one".