1262215 has 4 divisors (see below), whose sum is σ = 1514664. Its totient is φ = 1009768.

The previous prime is 1262207. The next prime is 1262221. The reversal of 1262215 is 5122621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5122621 = 7 ⋅731803.

It is a cyclic number.

It is not a de Polignac number, because 1262215 - 2³ = 1262207 is a prime.

It is a Duffinian number.

1262215 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1262192 and 1262201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126217 + ... + 126226.

It is an arithmetic number, because the mean of its divisors is an integer number (378666).

2^1262215 is an apocalyptic number.

1262215 is a deficient number, since it is larger than the sum of its proper divisors (252449).

1262215 is an equidigital number, since it uses as much as digits as its factorization.

1262215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252448.

The product of its digits is 240, while the sum is 19.

The square root of 1262215 is about 1123.4834222186. The cubic root of 1262215 is about 108.0714833116.

Adding to 1262215 its reverse (5122621), we get a palindrome (6384836).

The spelling of 1262215 in words is "one million, two hundred sixty-two thousand, two hundred fifteen".