1315545 has 64 divisors (see below), whose sum is σ = 2820096. Its totient is φ = 506880.

The previous prime is 1315543. The next prime is 1315549. The reversal of 1315545 is 5455131.

1315545 = T₁₁₁ + T₁₁₂ + ... + T₂₀₉.

It is not a de Polignac number, because 1315545 - 2¹ = 1315543 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1315543) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19602 + ... + 19668.

It is an arithmetic number, because the mean of its divisors is an integer number (44064).

2^1315545 is an apocalyptic number.

1315545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1315545 is an abundant number, since it is smaller than the sum of its proper divisors (1504551).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315545 is a wasteful number, since it uses less digits than its factorization.

1315545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110.

The product of its digits is 1500, while the sum is 24.

The square root of 1315545 is about 1146.9721007941. The cubic root of 1315545 is about 109.5725838062.

The spelling of 1315545 in words is "one million, three hundred fifteen thousand, five hundred forty-five".