1215006 has 32 divisors (see below), whose sum is σ = 2694048. Its totient is φ = 362880.

The previous prime is 1214981. The next prime is 1215017. The reversal of 1215006 is 6005121.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2676 + ... + 3096.

It is an arithmetic number, because the mean of its divisors is an integer number (84189).

2^1215006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1215006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1347024).

1215006 is an abundant number, since it is smaller than the sum of its proper divisors (1479042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1215006 is a wasteful number, since it uses less digits than its factorization.

1215006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1215006 is about 1102.2731059043. The cubic root of 1215006 is about 106.7069747835.

It can be divided in two parts, 121500 and 6, that multiplied together give a cube (729000 = 90³).

The spelling of 1215006 in words is "one million, two hundred fifteen thousand, six".