1139877 has 6 divisors (see below), whose sum is σ = 1646502. Its totient is φ = 759912.

The previous prime is 1139869. The next prime is 1139909. The reversal of 1139877 is 7789311.

It can be written as a sum of positive squares in only one way, i.e., 772641 + 367236 = 879^2 + 606^2 .

It is not a de Polignac number, because 1139877 - 2³ = 1139869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63318 + ... + 63335.

It is an arithmetic number, because the mean of its divisors is an integer number (274417).

2^1139877 is an apocalyptic number.

It is an amenable number.

1139877 is a deficient number, since it is larger than the sum of its proper divisors (506625).

1139877 is a wasteful number, since it uses less digits than its factorization.

1139877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126659 (or 126656 counting only the distinct ones).

The product of its digits is 10584, while the sum is 36.

The square root of 1139877 is about 1067.6502236220. The cubic root of 1139877 is about 104.4606354944.

It can be divided in two parts, 1139 and 877, that added together give a triangular number (2016 = T₆₃).

The spelling of 1139877 in words is "one million, one hundred thirty-nine thousand, eight hundred seventy-seven".