1315575 has 24 divisors (see below), whose sum is σ = 2418000. Its totient is φ = 701280.

The previous prime is 1315553. The next prime is 1315591. The reversal of 1315575 is 5755131.

It is not a de Polignac number, because 1315575 - 2⁵ = 1315543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300 + ... + 1649.

It is an arithmetic number, because the mean of its divisors is an integer number (100750).

2^1315575 is an apocalyptic number.

1315575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1315575 is a deficient number, since it is larger than the sum of its proper divisors (1102425).

1315575 is a wasteful number, since it uses less digits than its factorization.

1315575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968 (or 1957 counting only the distinct ones).

The product of its digits is 2625, while the sum is 27.

The square root of 1315575 is about 1146.9851786314. The cubic root of 1315575 is about 109.5734167062.

The spelling of 1315575 in words is "one million, three hundred fifteen thousand, five hundred seventy-five".