1147538311 has 2 divisors, whose sum is σ = 1147538312. Its totient is φ = 1147538310.

The previous prime is 1147538303. The next prime is 1147538317. The reversal of 1147538311 is 1138357411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1147538311 - 2³ = 1147538303 is a prime.

It is a super-3 number, since 3×1147538311³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1147538317) 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, 573769155 + 573769156.

It is an arithmetic number, because the mean of its divisors is an integer number (573769156).

Almost surely, 2^1147538311 is an apocalyptic number.

1147538311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147538311 is an equidigital number, since it uses as much as digits as its factorization.

1147538311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 34.

The square root of 1147538311 is about 33875.3348470535. The cubic root of 1147538311 is about 1046.9414580113.

Subtracting from 1147538311 its reverse (1138357411), we obtain a square (9180900 = 3030²).

The spelling of 1147538311 in words is "one billion, one hundred forty-seven million, five hundred thirty-eight thousand, three hundred eleven".