1174557091 has 2 divisors, whose sum is σ = 1174557092. Its totient is φ = 1174557090.

The previous prime is 1174556989. The next prime is 1174557157. The reversal of 1174557091 is 1907554711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1174557091 - 2¹³ = 1174548899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1174557691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 587278545 + 587278546.

It is an arithmetic number, because the mean of its divisors is an integer number (587278546).

Almost surely, 2^1174557091 is an apocalyptic number.

1174557091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1174557091 is an equidigital number, since it uses as much as digits as its factorization.

1174557091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100, while the sum is 40.

The square root of 1174557091 is about 34271.8119013279. The cubic root of 1174557091 is about 1055.0945434616.

The spelling of 1174557091 in words is "one billion, one hundred seventy-four million, five hundred fifty-seven thousand, ninety-one".