1154117647 has 2 divisors, whose sum is σ = 1154117648. Its totient is φ = 1154117646.

The previous prime is 1154117633. The next prime is 1154117677. The reversal of 1154117647 is 7467114511.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1154117647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1154117617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577058823 + 577058824.

It is an arithmetic number, because the mean of its divisors is an integer number (577058824).

Almost surely, 2^1154117647 is an apocalyptic number.

1154117647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154117647 is an equidigital number, since it uses as much as digits as its factorization.

1154117647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 37.

The square root of 1154117647 is about 33972.3070603102. The cubic root of 1154117647 is about 1048.9385030544.

The spelling of 1154117647 in words is "one billion, one hundred fifty-four million, one hundred seventeen thousand, six hundred forty-seven".