36131280 has 80 divisors (see below), whose sum is σ = 112861824. Its totient is φ = 9561600.

The previous prime is 36131269. The next prime is 36131287. The reversal of 36131280 is 8213163.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 36131280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36131287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35742 + ... + 36738.

Almost surely, 2^36131280 is an apocalyptic number.

36131280 is a gapful number since it is divisible by the number (30) 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 36131280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56430912).

36131280 is an abundant number, since it is smaller than the sum of its proper divisors (76730544).

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

36131280 is a wasteful number, since it uses less digits than its factorization.

36131280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 36131280 is about 6010.9300445106. The cubic root of 36131280 is about 330.5936055920.

The spelling of 36131280 in words is "thirty-six million, one hundred thirty-one thousand, two hundred eighty".