1261093 has 4 divisors (see below), whose sum is σ = 1263340. Its totient is φ = 1258848.

The previous prime is 1261081. The next prime is 1261109. The reversal of 1261093 is 3901621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 79524 + 1181569 = 282^2 + 1087^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1261093 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 (1261033) 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 3 ways as a sum of consecutive naturals, for example, 553 + ... + 1681.

It is an arithmetic number, because the mean of its divisors is an integer number (315835).

2^1261093 is an apocalyptic number.

It is an amenable number.

1261093 is a deficient number, since it is larger than the sum of its proper divisors (2247).

1261093 is a wasteful number, since it uses less digits than its factorization.

1261093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1261093 is about 1122.9839713905. The cubic root of 1261093 is about 108.0394517505.

The spelling of 1261093 in words is "one million, two hundred sixty-one thousand, ninety-three".