136630357 has 2 divisors, whose sum is σ = 136630358. Its totient is φ = 136630356.

The previous prime is 136630337. The next prime is 136630379. The reversal of 136630357 is 753036631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111640356 + 24990001 = 10566^2 + 4999^2 .

It is a cyclic number.

It is not a de Polignac number, because 136630357 - 2⁷ = 136630229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136630337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68315178 + 68315179.

It is an arithmetic number, because the mean of its divisors is an integer number (68315179).

Almost surely, 2^136630357 is an apocalyptic number.

It is an amenable number.

136630357 is a deficient number, since it is larger than the sum of its proper divisors (1).

136630357 is an equidigital number, since it uses as much as digits as its factorization.

136630357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 34.

The square root of 136630357 is about 11688.8988788508. The cubic root of 136630357 is about 515.0496159820.

Adding to 136630357 its reverse (753036631), we get a palindrome (889666988).

The spelling of 136630357 in words is "one hundred thirty-six million, six hundred thirty thousand, three hundred fifty-seven".