1206081536 has 144 divisors (see below), whose sum is σ = 2753674560. Its totient is φ = 527155200.

The previous prime is 1206081509. The next prime is 1206081553. The reversal of 1206081536 is 6351806021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7681970 + ... + 7682126.

It is an arithmetic number, because the mean of its divisors is an integer number (19122740).

Almost surely, 2^1206081536 is an apocalyptic number.

1206081536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1206081536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1376837280).

1206081536 is an abundant number, since it is smaller than the sum of its proper divisors (1547593024).

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

1206081536 is a wasteful number, since it uses less digits than its factorization.

1206081536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1206081536 is about 34728.6846281284. The cubic root of 1206081536 is about 1064.4507107421.

Adding to 1206081536 its reverse (6351806021), we get a palindrome (7557887557).

The spelling of 1206081536 in words is "one billion, two hundred six million, eighty-one thousand, five hundred thirty-six".