136451906 has 8 divisors (see below), whose sum is σ = 204816144. Its totient is φ = 68179860.

The previous prime is 136451899. The next prime is 136451921. The reversal of 136451906 is 609154631.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19220 + ... + 25343.

It is an arithmetic number, because the mean of its divisors is an integer number (25602018).

Almost surely, 2^136451906 is an apocalyptic number.

136451906 is a deficient number, since it is larger than the sum of its proper divisors (68364238).

136451906 is a wasteful number, since it uses less digits than its factorization.

136451906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46096.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 136451906 is about 11681.2630310254. The cubic root of 136451906 is about 514.8252852532.

It can be divided in two parts, 13645 and 1906, that added together give a palindrome (15551).

The spelling of 136451906 in words is "one hundred thirty-six million, four hundred fifty-one thousand, nine hundred six".