136118890 has 16 divisors (see below), whose sum is σ = 245677608. Its totient is φ = 54300096.

The previous prime is 136118777. The next prime is 136118891. The reversal of 136118890 is 98811631.

It is a Cunningham number, because it is equal to 11667²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 73977201 + 62141689 = 8601^2 + 7883^2 .

It is not an unprimeable number, because it can be changed into a prime (136118891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14517 + ... + 21976.

Almost surely, 2^136118890 is an apocalyptic number.

136118890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136118890 is a deficient number, since it is larger than the sum of its proper divisors (109558718).

136118890 is a wasteful number, since it uses less digits than its factorization.

136118890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36873.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 136118890 is about 11667.0000428559. Note that the first 4 decimals coincide. The cubic root of 136118890 is about 514.4061272648.

The spelling of 136118890 in words is "one hundred thirty-six million, one hundred eighteen thousand, eight hundred ninety".