1248598947 has 4 divisors (see below), whose sum is σ = 1664798600. Its totient is φ = 832399296.

The previous prime is 1248598933. The next prime is 1248598951. The reversal of 1248598947 is 7498958421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7498958421 = 3 ⋅2499652807.

It is not a de Polignac number, because 1248598947 - 2⁴ = 1248598931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1248597947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208099822 + ... + 208099827.

It is an arithmetic number, because the mean of its divisors is an integer number (416199650).

Almost surely, 2^1248598947 is an apocalyptic number.

1248598947 is a deficient number, since it is larger than the sum of its proper divisors (416199653).

1248598947 is an equidigital number, since it uses as much as digits as its factorization.

1248598947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416199652.

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

The square root of 1248598947 is about 35335.5196226120. The cubic root of 1248598947 is about 1076.8147309314.

The spelling of 1248598947 in words is "one billion, two hundred forty-eight million, five hundred ninety-eight thousand, nine hundred forty-seven".