1241215 has 4 divisors (see below), whose sum is σ = 1489464. Its totient is φ = 992968.

The previous prime is 1241203. The next prime is 1241243. The reversal of 1241215 is 5121421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1241215 - 2⁷ = 1241087 is a prime.

It is a super-2 number, since 2×1241215² = 3081229352450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124117 + ... + 124126.

It is an arithmetic number, because the mean of its divisors is an integer number (372366).

2^1241215 is an apocalyptic number.

1241215 is a deficient number, since it is larger than the sum of its proper divisors (248249).

1241215 is an equidigital number, since it uses as much as digits as its factorization.

1241215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248248.

The product of its digits is 80, while the sum is 16.

The square root of 1241215 is about 1114.0982900983. The cubic root of 1241215 is about 107.4687848795.

Adding to 1241215 its reverse (5121421), we get a palindrome (6362636).

It can be divided in two parts, 1241 and 215, that multiplied together give a triangular number (266815 = T₇₃₀).

The spelling of 1241215 in words is "one million, two hundred forty-one thousand, two hundred fifteen".