136668120 has 32 divisors (see below), whose sum is σ = 410004720. Its totient is φ = 36444800.

The previous prime is 136668107. The next prime is 136668143. The reversal of 136668120 is 21866631.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569331 + ... + 569570.

Almost surely, 2^136668120 is an apocalyptic number.

136668120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136668120 is an abundant number, since it is smaller than the sum of its proper divisors (273336600).

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

136668120 is a wasteful number, since it uses less digits than its factorization.

136668120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138915 (or 1138911 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 136668120 is about 11690.5141033233. The cubic root of 136668120 is about 515.0970628000.

The spelling of 136668120 in words is "one hundred thirty-six million, six hundred sixty-eight thousand, one hundred twenty".