137606563 has 2 divisors, whose sum is σ = 137606564. Its totient is φ = 137606562.

The previous prime is 137606527. The next prime is 137606593. The reversal of 137606563 is 365606731.

137606563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137606563 is a prime.

It is not a weakly prime, because it can be changed into another prime (137606593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68803281 + 68803282.

It is an arithmetic number, because the mean of its divisors is an integer number (68803282).

Almost surely, 2^137606563 is an apocalyptic number.

137606563 is a deficient number, since it is larger than the sum of its proper divisors (1).

137606563 is an equidigital number, since it uses as much as digits as its factorization.

137606563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 137606563 is about 11730.5823811096. The cubic root of 137606563 is about 516.2733601047.

The spelling of 137606563 in words is "one hundred thirty-seven million, six hundred six thousand, five hundred sixty-three".