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138419 = 971427
BaseRepresentation
bin100001110010110011
321000212122
4201302303
513412134
62544455
71114361
oct416263
9230778
10138419
1194aa6
126812b
134b008
1438631
152b02e
hex21cb3

138419 has 4 divisors (see below), whose sum is σ = 139944. Its totient is φ = 136896.

The previous prime is 138407. The next prime is 138427. The reversal of 138419 is 914831.

138419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 138419 - 24 = 138403 is a prime.

It is a super-2 number, since 2×1384192 = 38319639122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138449) 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, 617 + ... + 810.

It is an arithmetic number, because the mean of its divisors is an integer number (34986).

2138419 is an apocalyptic number.

138419 is a deficient number, since it is larger than the sum of its proper divisors (1525).

138419 is an equidigital number, since it uses as much as digits as its factorization.

138419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524.

The product of its digits is 864, while the sum is 26.

The square root of 138419 is about 372.0470400366. The cubic root of 138419 is about 51.7287402852.

The spelling of 138419 in words is "one hundred thirty-eight thousand, four hundred nineteen".

Divisors: 1 97 1427 138419