1139057 has 4 divisors (see below), whose sum is σ = 1141476. Its totient is φ = 1136640.

The previous prime is 1139041. The next prime is 1139059. The reversal of 1139057 is 7509311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 829921 + 309136 = 911^2 + 556^2 .

It is a cyclic number.

It is not a de Polignac number, because 1139057 - 2⁴ = 1139041 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, 248 + ... + 1529.

It is an arithmetic number, because the mean of its divisors is an integer number (285369).

2^1139057 is an apocalyptic number.

It is an amenable number.

1139057 is a deficient number, since it is larger than the sum of its proper divisors (2419).

1139057 is an equidigital number, since it uses as much as digits as its factorization.

1139057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 1139057 is about 1067.2661336330. The cubic root of 1139057 is about 104.4355806656.

It can be divided in two parts, 11390 and 57, that multiplied together give a triangular number (649230 = T₁₁₃₉).

The spelling of 1139057 in words is "one million, one hundred thirty-nine thousand, fifty-seven".