1206144 has 64 divisors (see below), whose sum is σ = 3570000. Its totient is φ = 400896.

The previous prime is 1206131. The next prime is 1206151. The reversal of 1206144 is 4416021.

It is a tau number, because it is divible by the number of its divisors (64).

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, 3282 + ... + 3630.

2^1206144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1206144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1785000).

1206144 is an abundant number, since it is smaller than the sum of its proper divisors (2363856).

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

1206144 is an equidigital number, since it uses as much as digits as its factorization.

1206144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1206144 is about 1098.2458741102. The cubic root of 1206144 is about 106.4469086697.

The spelling of 1206144 in words is "one million, two hundred six thousand, one hundred forty-four".