1248761236 has 12 divisors (see below), whose sum is σ = 2231828928. Its totient is φ = 611095832.

The previous prime is 1248761233. The next prime is 1248761243. The reversal of 1248761236 is 6321678421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248761233) 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, 3320986 + ... + 3321361.

It is an arithmetic number, because the mean of its divisors is an integer number (185985744).

Almost surely, 2^1248761236 is an apocalyptic number.

It is an amenable number.

1248761236 is a deficient number, since it is larger than the sum of its proper divisors (983067692).

1248761236 is a wasteful number, since it uses less digits than its factorization.

1248761236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6642398 (or 6642396 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 1248761236 is about 35337.8159483576. The cubic root of 1248761236 is about 1076.8613825845.

The spelling of 1248761236 in words is "one billion, two hundred forty-eight million, seven hundred sixty-one thousand, two hundred thirty-six".