1248597489 has 8 divisors (see below), whose sum is σ = 1665952960. Its totient is φ = 831820176.

The previous prime is 1248597463. The next prime is 1248597499. The reversal of 1248597489 is 9847958421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1248597489 - 2¹¹ = 1248595441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1248597499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139474 + ... + 148155.

It is an arithmetic number, because the mean of its divisors is an integer number (208244120).

Almost surely, 2^1248597489 is an apocalyptic number.

It is an amenable number.

1248597489 is a deficient number, since it is larger than the sum of its proper divisors (417355471).

1248597489 is a wasteful number, since it uses less digits than its factorization.

1248597489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289079.

The product of its digits is 5806080, while the sum is 57.

The square root of 1248597489 is about 35335.4989918071. The cubic root of 1248597489 is about 1076.8143117959.

The spelling of 1248597489 in words is "one billion, two hundred forty-eight million, five hundred ninety-seven thousand, four hundred eighty-nine".