1139206248 has 64 divisors (see below), whose sum is σ = 3167332800. Its totient is φ = 379391040.

The previous prime is 1139206247. The next prime is 1139206253. The reversal of 1139206248 is 8426029311.

1139206248 is a `hidden beast` number, since 1 + 1 + 3 + 9 + 20 + 624 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1139206241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370638 + ... + 373698.

It is an arithmetic number, because the mean of its divisors is an integer number (49489575).

Almost surely, 2^1139206248 is an apocalyptic number.

1139206248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1139206248 is an abundant number, since it is smaller than the sum of its proper divisors (2028126552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1139206248 is a wasteful number, since it uses less digits than its factorization.

1139206248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4799 (or 4789 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1139206248 is about 33752.1295328161. The cubic root of 1139206248 is about 1044.4014178375.

The spelling of 1139206248 in words is "one billion, one hundred thirty-nine million, two hundred six thousand, two hundred forty-eight".