1455000 has 80 divisors (see below), whose sum is σ = 4592280. Its totient is φ = 384000.

The previous prime is 1454993. The next prime is 1455007. The reversal of 1455000 is 5541.

It is an interprime number because it is at equal distance from previous prime (1454993) and next prime (1455007).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14952 + ... + 15048.

2^1455000 is an apocalyptic number.

1455000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1455000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2296140).

1455000 is an abundant number, since it is smaller than the sum of its proper divisors (3137280).

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

1455000 is an equidigital number, since it uses as much as digits as its factorization.

1455000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 1455000 is about 1206.2338081815. The cubic root of 1455000 is about 113.3150681830.

The spelling of 1455000 in words is "one million, four hundred fifty-five thousand".