1139957 has 8 divisors (see below), whose sum is σ = 1403136. Its totient is φ = 901872.

The previous prime is 1139951. The next prime is 1139959. The reversal of 1139957 is 7599311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1139957 - 2¹² = 1135861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6173 + ... + 6354.

It is an arithmetic number, because the mean of its divisors is an integer number (175392).

2^1139957 is an apocalyptic number.

It is an amenable number.

1139957 is a deficient number, since it is larger than the sum of its proper divisors (263179).

1139957 is a wasteful number, since it uses less digits than its factorization.

1139957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12547.

The product of its digits is 8505, while the sum is 35.

The square root of 1139957 is about 1067.6876884183. The cubic root of 1139957 is about 104.4630792245.

The spelling of 1139957 in words is "one million, one hundred thirty-nine thousand, nine hundred fifty-seven".