1525735 has 4 divisors (see below), whose sum is σ = 1830888. Its totient is φ = 1220584.

The previous prime is 1525729. The next prime is 1525747. The reversal of 1525735 is 5375251.

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

It is a cyclic number.

It is not a de Polignac number, because 1525735 - 2⁵ = 1525703 is a prime.

It is a Duffinian number.

1525735 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152569 + ... + 152578.

It is an arithmetic number, because the mean of its divisors is an integer number (457722).

2^1525735 is an apocalyptic number.

1525735 is a deficient number, since it is larger than the sum of its proper divisors (305153).

1525735 is an equidigital number, since it uses as much as digits as its factorization.

1525735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305152.

The product of its digits is 5250, while the sum is 28.

The square root of 1525735 is about 1235.2064604753. The cubic root of 1525735 is about 115.1223650262.

The spelling of 1525735 in words is "one million, five hundred twenty-five thousand, seven hundred thirty-five".