136669056 has 32 divisors (see below), whose sum is σ = 363028200. Its totient is φ = 45556224.

The previous prime is 136669051. The next prime is 136669061. The reversal of 136669056 is 650966631.

It is an interprime number because it is at equal distance from previous prime (136669051) and next prime (136669061).

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×136669056² = 37356861735862272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136668999 and 136669017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136669051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177571 + ... + 178338.

Almost surely, 2^136669056 is an apocalyptic number.

136669056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

136669056 is an abundant number, since it is smaller than the sum of its proper divisors (226359144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136669056 is an equidigital number, since it uses as much as digits as its factorization.

136669056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355926 (or 355914 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 136669056 is about 11690.5541357114. The cubic root of 136669056 is about 515.0982387137.

It can be divided in two parts, 13666 and 9056, that added together give a palindrome (22722).

The spelling of 136669056 in words is "one hundred thirty-six million, six hundred sixty-nine thousand, fifty-six".