11431151 has 2 divisors, whose sum is σ = 11431152. Its totient is φ = 11431150.

The previous prime is 11431139. The next prime is 11431177. The reversal of 11431151 is 15113411.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11431151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11431111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5715575 + 5715576.

It is an arithmetic number, because the mean of its divisors is an integer number (5715576).

Almost surely, 2^11431151 is an apocalyptic number.

11431151 is a deficient number, since it is larger than the sum of its proper divisors (1).

11431151 is an equidigital number, since it uses as much as digits as its factorization.

11431151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60, while the sum is 17.

The square root of 11431151 is about 3380.9985211473. The cubic root of 11431151 is about 225.2665220288.

Adding to 11431151 its reverse (15113411), we get a palindrome (26544562).

The spelling of 11431151 in words is "eleven million, four hundred thirty-one thousand, one hundred fifty-one".