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1139913 = 354691
BaseRepresentation
bin100010110010011001001
32010220200000
410112103021
5242434123
640233213
712455235
oct4262311
92126600
101139913
11709485
1246b809
1330bb08
142195c5
15177b43
hex1164c9

1139913 has 12 divisors (see below), whose sum is σ = 1707888. Its totient is φ = 759780.

The previous prime is 1139911. The next prime is 1139917. The reversal of 1139913 is 3199311.

It is not a de Polignac number, because 1139913 - 21 = 1139911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1139911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2103 + ... + 2588.

It is an arithmetic number, because the mean of its divisors is an integer number (142324).

21139913 is an apocalyptic number.

It is an amenable number.

1139913 is a deficient number, since it is larger than the sum of its proper divisors (567975).

1139913 is an frugal number, since it uses more digits than its factorization.

1139913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4706 (or 4694 counting only the distinct ones).

The product of its digits is 729, while the sum is 27.

The square root of 1139913 is about 1067.6670829430. The cubic root of 1139913 is about 104.4617351871.

The spelling of 1139913 in words is "one million, one hundred thirty-nine thousand, nine hundred thirteen".

Divisors: 1 3 9 27 81 243 4691 14073 42219 126657 379971 1139913