1451133191 has 2 divisors, whose sum is σ = 1451133192. Its totient is φ = 1451133190.

The previous prime is 1451133179. The next prime is 1451133197. The reversal of 1451133191 is 1913311541.

It is a strong prime.

It is an emirp because it is prime and its reverse (1913311541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1451133191 - 2⁶ = 1451133127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1451133197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725566595 + 725566596.

It is an arithmetic number, because the mean of its divisors is an integer number (725566596).

Almost surely, 2^1451133191 is an apocalyptic number.

1451133191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1451133191 is an equidigital number, since it uses as much as digits as its factorization.

1451133191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 29.

The square root of 1451133191 is about 38093.7421501222. The cubic root of 1451133191 is about 1132.1459705861.

The spelling of 1451133191 in words is "one billion, four hundred fifty-one million, one hundred thirty-three thousand, one hundred ninety-one".