1539313 has 2 divisors, whose sum is σ = 1539314. Its totient is φ = 1539312.

The previous prime is 1539301. The next prime is 1539331. The reversal of 1539313 is 3139351.

Together with next prime (1539331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1507984 + 31329 = 1228^2 + 177^2 .

It is a cyclic number.

It is not a de Polignac number, because 1539313 - 2⁵ = 1539281 is a prime.

1539313 is a lucky number.

It is equal to p₁₁₆₉₁₇ and since 1539313 and 116917 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1539613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769656 + 769657.

It is an arithmetic number, because the mean of its divisors is an integer number (769657).

2^1539313 is an apocalyptic number.

It is an amenable number.

1539313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1539313 is an equidigital number, since it uses as much as digits as its factorization.

1539313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1215, while the sum is 25.

The square root of 1539313 is about 1240.6905335336. The cubic root of 1539313 is about 115.4628604438.

The spelling of 1539313 in words is "one million, five hundred thirty-nine thousand, three hundred thirteen".