11958251 has 2 divisors, whose sum is σ = 11958252. Its totient is φ = 11958250.

The previous prime is 11958241. The next prime is 11958263. The reversal of 11958251 is 15285911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11958251 - 2⁶ = 11958187 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11958211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5979125 + 5979126.

It is an arithmetic number, because the mean of its divisors is an integer number (5979126).

Almost surely, 2^11958251 is an apocalyptic number.

11958251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11958251 is an equidigital number, since it uses as much as digits as its factorization.

11958251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 32.

The square root of 11958251 is about 3458.0704157087. The cubic root of 11958251 is about 228.6770362614.

The spelling of 11958251 in words is "eleven million, nine hundred fifty-eight thousand, two hundred fifty-one".