1215063 has 6 divisors (see below), whose sum is σ = 1755104. Its totient is φ = 810036.

The previous prime is 1215047. The next prime is 1215079. The reversal of 1215063 is 3605121.

It is an interprime number because it is at equal distance from previous prime (1215047) and next prime (1215079).

It is not a de Polignac number, because 1215063 - 2⁴ = 1215047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67495 + ... + 67512.

2^1215063 is an apocalyptic number.

1215063 is a deficient number, since it is larger than the sum of its proper divisors (540041).

1215063 is a wasteful number, since it uses less digits than its factorization.

1215063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135013 (or 135010 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1215063 is about 1102.2989612623. The cubic root of 1215063 is about 106.7086434179.

It can be divided in two parts, 121 and 5063, that added together give a square (5184 = 72²).

The spelling of 1215063 in words is "one million, two hundred fifteen thousand, sixty-three".