1531093 has 2 divisors, whose sum is σ = 1531094. Its totient is φ = 1531092.

The previous prime is 1531091. The next prime is 1531111. The reversal of 1531093 is 3901351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 879844 + 651249 = 938^2 + 807^2 .

It is an emirp because it is prime and its reverse (3901351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1531093 - 2¹ = 1531091 is a prime.

Together with 1531091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1531091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765546 + 765547.

It is an arithmetic number, because the mean of its divisors is an integer number (765547).

2^1531093 is an apocalyptic number.

It is an amenable number.

1531093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1531093 is an equidigital number, since it uses as much as digits as its factorization.

1531093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 1531093 is about 1237.3734278705. The cubic root of 1531093 is about 115.2569679097.

The spelling of 1531093 in words is "one million, five hundred thirty-one thousand, ninety-three".