1139051 has 4 divisors (see below), whose sum is σ = 1206072. Its totient is φ = 1072032.

The previous prime is 1139041. The next prime is 1139059. The reversal of 1139051 is 1509311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1139051 - 2⁶ = 1138987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1139059) 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, 33485 + ... + 33518.

It is an arithmetic number, because the mean of its divisors is an integer number (301518).

2^1139051 is an apocalyptic number.

1139051 is a deficient number, since it is larger than the sum of its proper divisors (67021).

1139051 is an equidigital number, since it uses as much as digits as its factorization.

1139051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67020.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 1139051 is about 1067.2633227091. The cubic root of 1139051 is about 104.4353972932.

The spelling of 1139051 in words is "one million, one hundred thirty-nine thousand, fifty-one".