1261713 has 4 divisors (see below), whose sum is σ = 1682288. Its totient is φ = 841140.

The previous prime is 1261699. The next prime is 1261717. The reversal of 1261713 is 3171621.

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 1261713 - 2⁴ = 1261697 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1261713.

It is not an unprimeable number, because it can be changed into a prime (1261717) 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, 210283 + ... + 210288.

It is an arithmetic number, because the mean of its divisors is an integer number (420572).

2^1261713 is an apocalyptic number.

It is an amenable number.

1261713 is a deficient number, since it is larger than the sum of its proper divisors (420575).

1261713 is an equidigital number, since it uses as much as digits as its factorization.

1261713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420574.

The product of its digits is 252, while the sum is 21.

The square root of 1261713 is about 1123.2599877143. The cubic root of 1261713 is about 108.0571542476.

The spelling of 1261713 in words is "one million, two hundred sixty-one thousand, seven hundred thirteen".