1248385312 has 12 divisors (see below), whose sum is σ = 2457758646. Its totient is φ = 624192640.

The previous prime is 1248385309. The next prime is 1248385349. The reversal of 1248385312 is 2135838421.

It can be written as a sum of positive squares in only one way, i.e., 715883536 + 532501776 = 26756^2 + 23076^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19505989 + ... + 19506052.

Almost surely, 2^1248385312 is an apocalyptic number.

It is an amenable number.

1248385312 is a deficient number, since it is larger than the sum of its proper divisors (1209373334).

1248385312 is an equidigital number, since it uses as much as digits as its factorization.

1248385312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39012051 (or 39012043 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 1248385312 is about 35332.4965435504. The cubic root of 1248385312 is about 1076.7533131753.

The spelling of 1248385312 in words is "one billion, two hundred forty-eight million, three hundred eighty-five thousand, three hundred twelve".