1445315 has 4 divisors (see below), whose sum is σ = 1734384. Its totient is φ = 1156248.

The previous prime is 1445303. The next prime is 1445317. The reversal of 1445315 is 5135441.

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 1445315 - 2¹⁰ = 1444291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445317) 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, 144527 + ... + 144536.

It is an arithmetic number, because the mean of its divisors is an integer number (433596).

2^1445315 is an apocalyptic number.

1445315 is a deficient number, since it is larger than the sum of its proper divisors (289069).

1445315 is an equidigital number, since it uses as much as digits as its factorization.

1445315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289068.

The product of its digits is 1200, while the sum is 23.

The square root of 1445315 is about 1202.2125436045. The cubic root of 1445315 is about 113.0630863958.

The spelling of 1445315 in words is "one million, four hundred forty-five thousand, three hundred fifteen".