136644190 has 8 divisors (see below), whose sum is σ = 245959560. Its totient is φ = 54657672.

The previous prime is 136644161. The next prime is 136644203. The reversal of 136644190 is 91446631.

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

It is a super-2 number, since 2×136644190² = 37343269321512200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6832200 + ... + 6832219.

It is an arithmetic number, because the mean of its divisors is an integer number (30744945).

Almost surely, 2^136644190 is an apocalyptic number.

136644190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136644190 is a deficient number, since it is larger than the sum of its proper divisors (109315370).

136644190 is a wasteful number, since it uses less digits than its factorization.

136644190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13664426.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 136644190 is about 11689.4905791484. The cubic root of 136644190 is about 515.0669972850.

The spelling of 136644190 in words is "one hundred thirty-six million, six hundred forty-four thousand, one hundred ninety".