136230973 has 2 divisors, whose sum is σ = 136230974. Its totient is φ = 136230972.

The previous prime is 136230959. The next prime is 136230989. The reversal of 136230973 is 379032631.

136230973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87272964 + 48958009 = 9342^2 + 6997^2 .

It is an emirp because it is prime and its reverse (379032631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136230973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136237973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68115486 + 68115487.

It is an arithmetic number, because the mean of its divisors is an integer number (68115487).

Almost surely, 2^136230973 is an apocalyptic number.

It is an amenable number.

136230973 is a deficient number, since it is larger than the sum of its proper divisors (1).

136230973 is an equidigital number, since it uses as much as digits as its factorization.

136230973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 136230973 is about 11671.8024743396. The cubic root of 136230973 is about 514.5472792732.

The spelling of 136230973 in words is "one hundred thirty-six million, two hundred thirty thousand, nine hundred seventy-three".