136489810 has 16 divisors (see below), whose sum is σ = 246015000. Its totient is φ = 54521856.

The previous prime is 136489763. The next prime is 136489819. The reversal of 136489810 is 18984631.

It can be written as a sum of positive squares in 4 ways, for example, as 67782289 + 68707521 = 8233^2 + 8289^2 .

It is a super-2 number, since 2×136489810² = 37258936467672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136489819) 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 7 ways as a sum of consecutive naturals, for example, 1185 + ... + 16564.

Almost surely, 2^136489810 is an apocalyptic number.

136489810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136489810 is a deficient number, since it is larger than the sum of its proper divisors (109525190).

136489810 is a wasteful number, since it uses less digits than its factorization.

136489810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18525.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 136489810 is about 11682.8853456670. The cubic root of 136489810 is about 514.8729507191.

The spelling of 136489810 in words is "one hundred thirty-six million, four hundred eighty-nine thousand, eight hundred ten".