1538473 has 2 divisors, whose sum is σ = 1538474. Its totient is φ = 1538472.

The previous prime is 1538461. The next prime is 1538491. The reversal of 1538473 is 3748351.

1538473 is nontrivially palindromic in base 5.

1538473 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1281424 + 257049 = 1132^2 + 507^2 .

It is an emirp because it is prime and its reverse (3748351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1538473 - 2⁵ = 1538441 is a prime.

It is not a weakly prime, because it can be changed into another prime (1538413) 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, 769236 + 769237.

It is an arithmetic number, because the mean of its divisors is an integer number (769237).

2^1538473 is an apocalyptic number.

It is an amenable number.

1538473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1538473 is an equidigital number, since it uses as much as digits as its factorization.

1538473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 1538473 is about 1240.3519661773. The cubic root of 1538473 is about 115.4418540056.

The spelling of 1538473 in words is "one million, five hundred thirty-eight thousand, four hundred seventy-three".