136870810 has 8 divisors (see below), whose sum is σ = 246367476. Its totient is φ = 54748320.

The previous prime is 136870801. The next prime is 136870823. The reversal of 136870810 is 18078631.

It can be written as a sum of positive squares in 2 ways, for example, as 120362841 + 16507969 = 10971^2 + 4063^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×136870810² = 37467237260112200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6843531 + ... + 6843550.

Almost surely, 2^136870810 is an apocalyptic number.

136870810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136870810 is a deficient number, since it is larger than the sum of its proper divisors (109496666).

136870810 is a wasteful number, since it uses less digits than its factorization.

136870810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13687088.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 136870810 is about 11699.1798857869. The cubic root of 136870810 is about 515.3515807090.

The spelling of 136870810 in words is "one hundred thirty-six million, eight hundred seventy thousand, eight hundred ten".