1525841 has 4 divisors (see below), whose sum is σ = 1528932. Its totient is φ = 1522752.

The previous prime is 1525837. The next prime is 1525859. The reversal of 1525841 is 1485251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 495616 + 1030225 = 704^2 + 1015^2 .

It is a cyclic number.

It is not a de Polignac number, because 1525841 - 2² = 1525837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1525841.

It is not an unprimeable number, because it can be changed into a prime (1525831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620 + ... + 1853.

It is an arithmetic number, because the mean of its divisors is an integer number (382233).

2^1525841 is an apocalyptic number.

It is an amenable number.

1525841 is a deficient number, since it is larger than the sum of its proper divisors (3091).

1525841 is an equidigital number, since it uses as much as digits as its factorization.

1525841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090.

The product of its digits is 1600, while the sum is 26.

The square root of 1525841 is about 1235.2493675368. The cubic root of 1525841 is about 115.1250309955.

The spelling of 1525841 in words is "one million, five hundred twenty-five thousand, eight hundred forty-one".