136172087 has 2 divisors, whose sum is σ = 136172088. Its totient is φ = 136172086.

The previous prime is 136172053. The next prime is 136172123. The reversal of 136172087 is 780271631.

136172087 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 is a cyclic number.

It is not a de Polignac number, because 136172087 - 2¹² = 136167991 is a prime.

It is a Chen prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136172017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68086043 + 68086044.

It is an arithmetic number, because the mean of its divisors is an integer number (68086044).

Almost surely, 2^136172087 is an apocalyptic number.

136172087 is a deficient number, since it is larger than the sum of its proper divisors (1).

136172087 is an equidigital number, since it uses as much as digits as its factorization.

136172087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 136172087 is about 11669.2796264380. The cubic root of 136172087 is about 514.4731306975.

The spelling of 136172087 in words is "one hundred thirty-six million, one hundred seventy-two thousand, eighty-seven".