1157591447 has 2 divisors, whose sum is σ = 1157591448. Its totient is φ = 1157591446.

The previous prime is 1157591423. The next prime is 1157591471. The reversal of 1157591447 is 7441957511.

It is a balanced prime because it is at equal distance from previous prime (1157591423) and next prime (1157591471).

It is a cyclic number.

It is not a de Polignac number, because 1157591447 - 2⁸ = 1157591191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1157591398 and 1157591407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157597447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578795723 + 578795724.

It is an arithmetic number, because the mean of its divisors is an integer number (578795724).

Almost surely, 2^1157591447 is an apocalyptic number.

1157591447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157591447 is an equidigital number, since it uses as much as digits as its factorization.

1157591447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 176400, while the sum is 44.

The square root of 1157591447 is about 34023.3955830396. The cubic root of 1157591447 is about 1049.9898553820.

The spelling of 1157591447 in words is "one billion, one hundred fifty-seven million, five hundred ninety-one thousand, four hundred forty-seven".