11725391 has 2 divisors, whose sum is σ = 11725392. Its totient is φ = 11725390.

The previous prime is 11725387. The next prime is 11725397. The reversal of 11725391 is 19352711.

11725391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11725391 - 2² = 11725387 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11725397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5862695 + 5862696.

It is an arithmetic number, because the mean of its divisors is an integer number (5862696).

Almost surely, 2^11725391 is an apocalyptic number.

11725391 is a deficient number, since it is larger than the sum of its proper divisors (1).

11725391 is an equidigital number, since it uses as much as digits as its factorization.

11725391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 29.

The square root of 11725391 is about 3424.2358271591. The cubic root of 11725391 is about 227.1829726606.

The spelling of 11725391 in words is "eleven million, seven hundred twenty-five thousand, three hundred ninety-one".