1151808479 has 2 divisors, whose sum is σ = 1151808480. Its totient is φ = 1151808478.

The previous prime is 1151808439. The next prime is 1151808487. The reversal of 1151808479 is 9748081511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1151808479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151808439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575904239 + 575904240.

It is an arithmetic number, because the mean of its divisors is an integer number (575904240).

Almost surely, 2^1151808479 is an apocalyptic number.

1151808479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151808479 is an equidigital number, since it uses as much as digits as its factorization.

1151808479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 44.

The square root of 1151808479 is about 33938.3040088924. The cubic root of 1151808479 is about 1048.2384610597.

The spelling of 1151808479 in words is "one billion, one hundred fifty-one million, eight hundred eight thousand, four hundred seventy-nine".