1139021248 has 14 divisors (see below), whose sum is σ = 2260245416. Its totient is φ = 569510592.

The previous prime is 1139021231. The next prime is 1139021321. The reversal of 1139021248 is 8421209311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8898540 + ... + 8898667.

Almost surely, 2^1139021248 is an apocalyptic number.

It is an amenable number.

1139021248 is a deficient number, since it is larger than the sum of its proper divisors (1121224168).

1139021248 is an equidigital number, since it uses as much as digits as its factorization.

1139021248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17797219 (or 17797209 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1139021248 is about 33749.3888537259. The cubic root of 1139021248 is about 1044.3448800150.

The spelling of 1139021248 in words is "one billion, one hundred thirty-nine million, twenty-one thousand, two hundred forty-eight".