1440145 has 16 divisors (see below), whose sum is σ = 2062080. Its totient is φ = 944064.

The previous prime is 1440119. The next prime is 1440203. The reversal of 1440145 is 5410441.

It is a cyclic number.

It is not a de Polignac number, because 1440145 - 2⁷ = 1440017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90 + ... + 1699.

It is an arithmetic number, because the mean of its divisors is an integer number (128880).

2^1440145 is an apocalyptic number.

It is an amenable number.

1440145 is a deficient number, since it is larger than the sum of its proper divisors (621935).

1440145 is a wasteful number, since it uses less digits than its factorization.

1440145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1440145 is about 1200.0604151458. The cubic root of 1440145 is about 112.9281136225.

Adding to 1440145 its reverse (5410441), we get a palindrome (6850586).

The spelling of 1440145 in words is "one million, four hundred forty thousand, one hundred forty-five".