1539253 has 2 divisors, whose sum is σ = 1539254. Its totient is φ = 1539252.

The previous prime is 1539227. The next prime is 1539257. The reversal of 1539253 is 3529351.

It is the 507-th star number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1397124 + 142129 = 1182^2 + 377^2 .

It is a cyclic number.

It is not a de Polignac number, because 1539253 - 2¹⁷ = 1408181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1539257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769626 + 769627.

It is an arithmetic number, because the mean of its divisors is an integer number (769627).

2^1539253 is an apocalyptic number.

It is an amenable number.

1539253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1539253 is an equidigital number, since it uses as much as digits as its factorization.

1539253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4050, while the sum is 28.

The square root of 1539253 is about 1240.6663532151. Note that the first 3 decimals coincide. The cubic root of 1539253 is about 115.4613602374.

The spelling of 1539253 in words is "one million, five hundred thirty-nine thousand, two hundred fifty-three".