1013261 has 4 divisors (see below), whose sum is σ = 1019292. Its totient is φ = 1007232.

The previous prime is 1013249. The next prime is 1013263. The reversal of 1013261 is 1623101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 940900 + 72361 = 970^2 + 269^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013261 - 2⁶ = 1013197 is a prime.

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 (1013263) 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, 2756 + ... + 3101.

It is an arithmetic number, because the mean of its divisors is an integer number (254823).

2^1013261 is an apocalyptic number.

It is an amenable number.

1013261 is a deficient number, since it is larger than the sum of its proper divisors (6031).

1013261 is an equidigital number, since it uses as much as digits as its factorization.

1013261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6030.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1013261 is about 1006.6086627881. The cubic root of 1013261 is about 100.4400936677.

Adding to 1013261 its reverse (1623101), we get a palindrome (2636362).

The spelling of 1013261 in words is "one million, thirteen thousand, two hundred sixty-one".