1148298591 has 12 divisors (see below), whose sum is σ = 1682906456. Its totient is φ = 695938320.

The previous prime is 1148298577. The next prime is 1148298623. The reversal of 1148298591 is 1958928411.

It is a happy number.

It is not a de Polignac number, because 1148298591 - 2¹³ = 1148290399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1148298591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148298091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1581316 + ... + 1582041.

Almost surely, 2^1148298591 is an apocalyptic number.

1148298591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1148298591 is a deficient number, since it is larger than the sum of its proper divisors (534607865).

1148298591 is a wasteful number, since it uses less digits than its factorization.

1148298591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163382 (or 3163371 counting only the distinct ones).

The product of its digits is 207360, while the sum is 48.

The square root of 1148298591 is about 33886.5547230756. The cubic root of 1148298591 is about 1047.1726174489.

The spelling of 1148298591 in words is "one billion, one hundred forty-eight million, two hundred ninety-eight thousand, five hundred ninety-one".