1525873 has 2 divisors, whose sum is σ = 1525874. Its totient is φ = 1525872.

The previous prime is 1525859. The next prime is 1525877. The reversal of 1525873 is 3785251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1151329 + 374544 = 1073^2 + 612^2 .

It is an emirp because it is prime and its reverse (3785251) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1525873 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1525877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762936 + 762937.

It is an arithmetic number, because the mean of its divisors is an integer number (762937).

2^1525873 is an apocalyptic number.

It is an amenable number.

1525873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525873 is an equidigital number, since it uses as much as digits as its factorization.

1525873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 31.

The square root of 1525873 is about 1235.2623203190. The cubic root of 1525873 is about 115.1258357922.

The spelling of 1525873 in words is "one million, five hundred twenty-five thousand, eight hundred seventy-three".