1423215 has 12 divisors (see below), whose sum is σ = 2466984. Its totient is φ = 759024.

The previous prime is 1423193. The next prime is 1423231. The reversal of 1423215 is 5123241.

It is not a de Polignac number, because 1423215 - 2⁵ = 1423183 is a prime.

1423215 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15769 + ... + 15858.

It is an arithmetic number, because the mean of its divisors is an integer number (205582).

2^1423215 is an apocalyptic number.

1423215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1423215 is a deficient number, since it is larger than the sum of its proper divisors (1043769).

1423215 is a wasteful number, since it uses less digits than its factorization.

1423215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31638 (or 31635 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 1423215 is about 1192.9857501245. The cubic root of 1423215 is about 112.4838495334.

Adding to 1423215 its reverse (5123241), we get a palindrome (6546456).

The spelling of 1423215 in words is "one million, four hundred twenty-three thousand, two hundred fifteen".