136144507 has 2 divisors, whose sum is σ = 136144508. Its totient is φ = 136144506.

The previous prime is 136144487. The next prime is 136144511. The reversal of 136144507 is 705441631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136144507 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136144537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68072253 + 68072254.

It is an arithmetic number, because the mean of its divisors is an integer number (68072254).

Almost surely, 2^136144507 is an apocalyptic number.

136144507 is a deficient number, since it is larger than the sum of its proper divisors (1).

136144507 is an equidigital number, since it uses as much as digits as its factorization.

136144507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 136144507 is about 11668.0978312662. The cubic root of 136144507 is about 514.4383949272.

The spelling of 136144507 in words is "one hundred thirty-six million, one hundred forty-four thousand, five hundred seven".