1248988797 has 12 divisors (see below), whose sum is σ = 2061822880. Its totient is φ = 713707848.

The previous prime is 1248988771. The next prime is 1248988823. The reversal of 1248988797 is 7978898421.

1248988797 is a `hidden beast` number, since 1 + 2 + 489 + 88 + 79 + 7 = 666.

1248988797 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1248988771) and next prime (1248988823).

It is not a de Polignac number, because 1248988797 - 2¹² = 1248984701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 19825219 = 1248988797 / (1 + 2 + 4 + 8 + 9 + 8 + 8 + 7 + 9 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248988717) 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, 9912547 + ... + 9912672.

Almost surely, 2^1248988797 is an apocalyptic number.

It is an amenable number.

1248988797 is a deficient number, since it is larger than the sum of its proper divisors (812834083).

1248988797 is a wasteful number, since it uses less digits than its factorization.

1248988797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19825232 (or 19825229 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 63.

The square root of 1248988797 is about 35341.0355960320. The cubic root of 1248988797 is about 1076.9267905431.

The spelling of 1248988797 in words is "one billion, two hundred forty-eight million, nine hundred eighty-eight thousand, seven hundred ninety-seven".