1392055 has 16 divisors (see below), whose sum is σ = 1972224. Its totient is φ = 923040.
The previous prime is 1392007. The next prime is 1392089. The reversal of 1392055 is 5502931.
It is not a de Polignac number, because 1392055 - 27 = 1391927 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444 + ... + 1726.
It is an arithmetic number, because the mean of its divisors is an integer number (123264).
21392055 is an apocalyptic number.
1392055 is a deficient number, since it is larger than the sum of its proper divisors (580169).
1392055 is a wasteful number, since it uses less digits than its factorization.
1392055 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1326.
The product of its (nonzero) digits is 1350, while the sum is 25.
The square root of 1392055 is about 1179.8538045029. The cubic root of 1392055 is about 111.6568739711.
Adding to 1392055 its reverse (5502931), we get a palindrome (6894986).
The spelling of 1392055 in words is "one million, three hundred ninety-two thousand, fifty-five".
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