136314869 has 2 divisors, whose sum is σ = 136314870. Its totient is φ = 136314868.

The previous prime is 136314853. The next prime is 136314881. The reversal of 136314869 is 968413631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124322500 + 11992369 = 11150^2 + 3463^2 .

It is an emirp because it is prime and its reverse (968413631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136314869 - 2⁴ = 136314853 is a prime.

It is a super-2 number, since 2×136314869² = 37163487020974322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136314889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68157434 + 68157435.

It is an arithmetic number, because the mean of its divisors is an integer number (68157435).

Almost surely, 2^136314869 is an apocalyptic number.

It is an amenable number.

136314869 is a deficient number, since it is larger than the sum of its proper divisors (1).

136314869 is an equidigital number, since it uses as much as digits as its factorization.

136314869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 136314869 is about 11675.3958819391. The cubic root of 136314869 is about 514.6528832560.

The spelling of 136314869 in words is "one hundred thirty-six million, three hundred fourteen thousand, eight hundred sixty-nine".