1421115 has 16 divisors (see below), whose sum is σ = 2407968. Its totient is φ = 713216.

The previous prime is 1421113. The next prime is 1421141. The reversal of 1421115 is 5111241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1421115 - 2¹ = 1421113 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 1421094 and 1421103.

It is not an unprimeable number, because it can be changed into a prime (1421113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2532 + ... + 3041.

It is an arithmetic number, because the mean of its divisors is an integer number (150498).

2^1421115 is an apocalyptic number.

1421115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1421115 is a deficient number, since it is larger than the sum of its proper divisors (986853).

1421115 is a wasteful number, since it uses less digits than its factorization.

1421115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5598.

The product of its digits is 40, while the sum is 15.

The square root of 1421115 is about 1192.1052805856. The cubic root of 1421115 is about 112.4284977745.

Adding to 1421115 its reverse (5111241), we get a palindrome (6532356).

The spelling of 1421115 in words is "one million, four hundred twenty-one thousand, one hundred fifteen".