1215054 has 16 divisors (see below), whose sum is σ = 2700240. Its totient is φ = 405000.

The previous prime is 1215047. The next prime is 1215079. The reversal of 1215054 is 4505121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11197 + ... + 11304.

It is an arithmetic number, because the mean of its divisors is an integer number (168765).

2^1215054 is an apocalyptic number.

1215054 is an abundant number, since it is smaller than the sum of its proper divisors (1485186).

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

1215054 is a wasteful number, since it uses less digits than its factorization.

1215054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22512 (or 22506 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1215054 is about 1102.2948788777. The cubic root of 1215054 is about 106.7083799528.

It can be divided in two parts, 12150 and 54, that multiplied together give a square (656100 = 810²).

The spelling of 1215054 in words is "one million, two hundred fifteen thousand, fifty-four".