1139288 has 16 divisors (see below), whose sum is σ = 2177280. Its totient is φ = 558688.

The previous prime is 1139287. The next prime is 1139291. The reversal of 1139288 is 8829311.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139287) 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, 920 + ... + 1767.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

2^1139288 is an apocalyptic number.

It is an amenable number.

1139288 is a deficient number, since it is larger than the sum of its proper divisors (1037992).

1139288 is a wasteful number, since it uses less digits than its factorization.

1139288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746 (or 2742 counting only the distinct ones).

The product of its digits is 3456, while the sum is 32.

The square root of 1139288 is about 1067.3743485769. The cubic root of 1139288 is about 104.4426400104.

The spelling of 1139288 in words is "one million, one hundred thirty-nine thousand, two hundred eighty-eight".