1421715 has 8 divisors (see below), whose sum is σ = 2274768. Its totient is φ = 758240.

The previous prime is 1421711. The next prime is 1421731. The reversal of 1421715 is 5171241.

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 1421715 - 2² = 1421711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1421691 and 1421700.

It is not an unprimeable number, because it can be changed into a prime (1421711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47376 + ... + 47405.

It is an arithmetic number, because the mean of its divisors is an integer number (284346).

2^1421715 is an apocalyptic number.

1421715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1421715 is a deficient number, since it is larger than the sum of its proper divisors (853053).

1421715 is an equidigital number, since it uses as much as digits as its factorization.

1421715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94789.

The product of its digits is 280, while the sum is 21.

The square root of 1421715 is about 1192.3569096542. The cubic root of 1421715 is about 112.4443181238. Note that the first 3 decimals are identical.

Adding to 1421715 its reverse (5171241), we get a palindrome (6592956).

The spelling of 1421715 in words is "one million, four hundred twenty-one thousand, seven hundred fifteen".