1455145 has 8 divisors (see below), whose sum is σ = 1771200. Its totient is φ = 1147440.

The previous prime is 1455143. The next prime is 1455151. The reversal of 1455145 is 5415541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1455145 - 2¹ = 1455143 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1455143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1695 + ... + 2404.

It is an arithmetic number, because the mean of its divisors is an integer number (221400).

2^1455145 is an apocalyptic number.

It is an amenable number.

1455145 is a deficient number, since it is larger than the sum of its proper divisors (316055).

1455145 is an equidigital number, since it uses as much as digits as its factorization.

1455145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4175.

The product of its digits is 2000, while the sum is 25.

The square root of 1455145 is about 1206.2939111179. The cubic root of 1455145 is about 113.3188322469.

It can be divided in two parts, 1455 and 145, that added together give a square (1600 = 40²).

The spelling of 1455145 in words is "one million, four hundred fifty-five thousand, one hundred forty-five".