136446623 has 2 divisors, whose sum is σ = 136446624. Its totient is φ = 136446622.

The previous prime is 136446617. The next prime is 136446631. The reversal of 136446623 is 326644631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136446623 - 2⁶ = 136446559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136446613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68223311 + 68223312.

It is an arithmetic number, because the mean of its divisors is an integer number (68223312).

Almost surely, 2^136446623 is an apocalyptic number.

136446623 is a deficient number, since it is larger than the sum of its proper divisors (1).

136446623 is an equidigital number, since it uses as much as digits as its factorization.

136446623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 35.

The square root of 136446623 is about 11681.0368974676. The cubic root of 136446623 is about 514.8186410145.

The spelling of 136446623 in words is "one hundred thirty-six million, four hundred forty-six thousand, six hundred twenty-three".