136875730 has 32 divisors (see below), whose sum is σ = 252456624. Its totient is φ = 53415936.

The previous prime is 136875727. The next prime is 136875731. The reversal of 136875730 is 37578631.

It can be written as a sum of positive squares in 8 ways, for example, as 72539289 + 64336441 = 8517^2 + 8021^2 .

It is not an unprimeable number, because it can be changed into a prime (136875731) 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, 69844 + ... + 71776.

Almost surely, 2^136875730 is an apocalyptic number.

136875730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136875730 is a deficient number, since it is larger than the sum of its proper divisors (115580894).

136875730 is a wasteful number, since it uses less digits than its factorization.

136875730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 136875730 is about 11699.3901550465. The cubic root of 136875730 is about 515.3577556302.

The spelling of 136875730 in words is "one hundred thirty-six million, eight hundred seventy-five thousand, seven hundred thirty".