1539073 has 2 divisors, whose sum is σ = 1539074. Its totient is φ = 1539072.

The previous prime is 1539053. The next prime is 1539103. The reversal of 1539073 is 3709351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1238769 + 300304 = 1113^2 + 548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1539073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1539053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769536 + 769537.

It is an arithmetic number, because the mean of its divisors is an integer number (769537).

2^1539073 is an apocalyptic number.

It is an amenable number.

1539073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1539073 is an equidigital number, since it uses as much as digits as its factorization.

1539073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 1539073 is about 1240.5938094316. The cubic root of 1539073 is about 115.4568593843.

The spelling of 1539073 in words is "one million, five hundred thirty-nine thousand, seventy-three".