1381413 has 16 divisors (see below), whose sum is σ = 2060352. Its totient is φ = 816000.
The previous prime is 1381411. The next prime is 1381421. The reversal of 1381413 is 3141831.
It is not a de Polignac number, because 1381413 - 21 = 1381411 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1381413.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1381411) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 843 + ... + 1863.
It is an arithmetic number, because the mean of its divisors is an integer number (128772).
21381413 is an apocalyptic number.
It is an amenable number.
1381413 is a deficient number, since it is larger than the sum of its proper divisors (678939).
1381413 is a wasteful number, since it uses less digits than its factorization.
1381413 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1076.
The product of its digits is 288, while the sum is 21.
The square root of 1381413 is about 1175.3352713162. The cubic root of 1381413 is about 111.3716138417.
It can be divided in two parts, 138 and 1413, that added together give a palindrome (1551).
The spelling of 1381413 in words is "one million, three hundred eighty-one thousand, four hundred thirteen".
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