1525273 has 2 divisors, whose sum is σ = 1525274. Its totient is φ = 1525272.

The previous prime is 1525267. The next prime is 1525297. The reversal of 1525273 is 3725251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1338649 + 186624 = 1157^2 + 432^2 .

It is an emirp because it is prime and its reverse (3725251) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1525273 is a prime.

1525273 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1525243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762636 + 762637.

It is an arithmetic number, because the mean of its divisors is an integer number (762637).

2^1525273 is an apocalyptic number.

It is an amenable number.

1525273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525273 is an equidigital number, since it uses as much as digits as its factorization.

1525273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2100, while the sum is 25.

The square root of 1525273 is about 1235.0194330455. The cubic root of 1525273 is about 115.1107439819.

The spelling of 1525273 in words is "one million, five hundred twenty-five thousand, two hundred seventy-three".