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1393241 is a prime number
BaseRepresentation
bin101010100001001011001
32121210011112
411110021121
5324040431
645510105
714561633
oct5241131
92553145
101393241
11871843
12572335
1339a205
14283a53
151c7c2b
hex154259

1393241 has 2 divisors, whose sum is σ = 1393242. Its totient is φ = 1393240.

The previous prime is 1393229. The next prime is 1393253. The reversal of 1393241 is 1423931.

It is a balanced prime because it is at equal distance from previous prime (1393229) and next prime (1393253).

It can be written as a sum of positive squares in only one way, i.e., 1392400 + 841 = 1180^2 + 29^2 .

It is an emirp because it is prime and its reverse (1423931) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1393241 is a prime.

It is a super-2 number, since 2×13932412 = 3882240968162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1393261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696620 + 696621.

It is an arithmetic number, because the mean of its divisors is an integer number (696621).

21393241 is an apocalyptic number.

It is an amenable number.

1393241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393241 is an equidigital number, since it uses as much as digits as its factorization.

1393241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

The square root of 1393241 is about 1180.3563021393. The cubic root of 1393241 is about 111.6885746971.

The spelling of 1393241 in words is "one million, three hundred ninety-three thousand, two hundred forty-one".