136531250 has 56 divisors (see below), whose sum is σ = 272105892. Its totient is φ = 51200000.

The previous prime is 136531249. The next prime is 136531259. The reversal of 136531250 is 52135631.

It can be written as a sum of positive squares in 14 ways, for example, as 61136761 + 75394489 = 7819^2 + 8683^2 .

It is not an unprimeable number, because it can be changed into a prime (136531259) 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 27 ways as a sum of consecutive naturals, for example, 531122 + ... + 531378.

Almost surely, 2^136531250 is an apocalyptic number.

136531250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136531250 is a deficient number, since it is larger than the sum of its proper divisors (135574642).

136531250 is an frugal number, since it uses more digits than its factorization.

136531250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 136531250 is about 11684.6587455518. The cubic root of 136531250 is about 514.9250527188.

Adding to 136531250 its reverse (52135631), we get a palindrome (188666881).

It can be divided in two parts, 136 and 531250, that multiplied together give a square (72250000 = 8500²).

The spelling of 136531250 in words is "one hundred thirty-six million, five hundred thirty-one thousand, two hundred fifty".