1151415191 has 2 divisors, whose sum is σ = 1151415192. Its totient is φ = 1151415190.

The previous prime is 1151415179. The next prime is 1151415227. The reversal of 1151415191 is 1915141511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1151415191 - 2⁶ = 1151415127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153415191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575707595 + 575707596.

It is an arithmetic number, because the mean of its divisors is an integer number (575707596).

Almost surely, 2^1151415191 is an apocalyptic number.

1151415191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151415191 is an equidigital number, since it uses as much as digits as its factorization.

1151415191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 29.

The square root of 1151415191 is about 33932.5093531262. The cubic root of 1151415191 is about 1048.1191395617.

The spelling of 1151415191 in words is "one billion, one hundred fifty-one million, four hundred fifteen thousand, one hundred ninety-one".