136437000191 has 2 divisors, whose sum is σ = 136437000192. Its totient is φ = 136437000190.

The previous prime is 136437000173. The next prime is 136437000197. The reversal of 136437000191 is 191000734631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136437000191 - 2⁶ = 136437000127 is a prime.

It is a super-2 number, since 2×136437000191² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136437000197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68218500095 + 68218500096.

It is an arithmetic number, because the mean of its divisors is an integer number (68218500096).

Almost surely, 2^136437000191 is an apocalyptic number.

136437000191 is a deficient number, since it is larger than the sum of its proper divisors (1).

136437000191 is an equidigital number, since it uses as much as digits as its factorization.

136437000191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The spelling of 136437000191 in words is "one hundred thirty-six billion, four hundred thirty-seven million, one hundred ninety-one", and thus it is an aban number.