1139215 has 24 divisors (see below), whose sum is σ = 1723680. Its totient is φ = 707520.

The previous prime is 1139197. The next prime is 1139227. The reversal of 1139215 is 5129311.

It is not a de Polignac number, because 1139215 - 2⁷ = 1139087 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4101 + ... + 4369.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2^1139215 is an apocalyptic number.

1139215 is a deficient number, since it is larger than the sum of its proper divisors (584465).

1139215 is a wasteful number, since it uses less digits than its factorization.

1139215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 292 counting only the distinct ones).

The product of its digits is 270, while the sum is 22.

The square root of 1139215 is about 1067.3401519666. The cubic root of 1139215 is about 104.4404092383.

The spelling of 1139215 in words is "one million, one hundred thirty-nine thousand, two hundred fifteen".