136488479 has 2 divisors, whose sum is σ = 136488480. Its totient is φ = 136488478.

The previous prime is 136488433. The next prime is 136488491. The reversal of 136488479 is 974884631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136488479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136488679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68244239 + 68244240.

It is an arithmetic number, because the mean of its divisors is an integer number (68244240).

Almost surely, 2^136488479 is an apocalyptic number.

136488479 is a deficient number, since it is larger than the sum of its proper divisors (1).

136488479 is an equidigital number, since it uses as much as digits as its factorization.

136488479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 50.

The square root of 136488479 is about 11682.8283818603. The cubic root of 136488479 is about 514.8712770944.

The spelling of 136488479 in words is "one hundred thirty-six million, four hundred eighty-eight thousand, four hundred seventy-nine".