1001215 has 8 divisors (see below), whose sum is σ = 1272240. Its totient is φ = 753792.

The previous prime is 1001197. The next prime is 1001219. The reversal of 1001215 is 5121001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001215 - 2⁷ = 1001087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5805 + ... + 5974.

It is an arithmetic number, because the mean of its divisors is an integer number (159030).

2^1001215 is an apocalyptic number.

1001215 is a deficient number, since it is larger than the sum of its proper divisors (271025).

1001215 is a wasteful number, since it uses less digits than its factorization.

1001215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11801.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 1001215 is about 1000.6073155839. The cubic root of 1001215 is about 100.0404836086.

Adding to 1001215 its reverse (5121001), we get a palindrome (6122216).

The spelling of 1001215 in words is "one million, one thousand, two hundred fifteen".