135772200 has 360 divisors, whose sum is σ = 518200650. Its totient is φ = 32901120.

The previous prime is 135772181. The next prime is 135772207. The reversal of 135772200 is 2277531.

It can be written as a sum of positive squares in 9 ways, for example, as 38118276 + 97653924 = 6174^2 + 9882^2 .

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (135772207) 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 89 ways as a sum of consecutive naturals, for example, 4681786 + ... + 4681814.

Almost surely, 2^135772200 is an apocalyptic number.

135772200 is a gapful number since it is divisible by the number (10) 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 135772200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259100325).

135772200 is an abundant number, since it is smaller than the sum of its proper divisors (382428450).

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

135772200 is a wasteful number, since it uses less digits than its factorization.

135772200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 135772200 is about 11652.1328519718. The cubic root of 135772200 is about 513.9690312257.

The spelling of 135772200 in words is "one hundred thirty-five million, seven hundred seventy-two thousand, two hundred".