136553009 has 2 divisors, whose sum is σ = 136553010. Its totient is φ = 136553008.

The previous prime is 136552973. The next prime is 136553017. The reversal of 136553009 is 900355631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118744609 + 17808400 = 10897^2 + 4220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136553009 is a prime.

It is not a weakly prime, because it can be changed into another prime (136553029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68276504 + 68276505.

It is an arithmetic number, because the mean of its divisors is an integer number (68276505).

Almost surely, 2^136553009 is an apocalyptic number.

It is an amenable number.

136553009 is a deficient number, since it is larger than the sum of its proper divisors (1).

136553009 is an equidigital number, since it uses as much as digits as its factorization.

136553009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 136553009 is about 11685.5898011183. The cubic root of 136553009 is about 514.9524058194.

The spelling of 136553009 in words is "one hundred thirty-six million, five hundred fifty-three thousand, nine".