136246125391 has 2 divisors, whose sum is σ = 136246125392. Its totient is φ = 136246125390.

The previous prime is 136246125287. The next prime is 136246125497. The reversal of 136246125391 is 193521642631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136246125391 - 2⁹ = 136246124879 is a prime.

It is a super-3 number, since 3×136246125391³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136246125791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68123062695 + 68123062696.

It is an arithmetic number, because the mean of its divisors is an integer number (68123062696).

Almost surely, 2^136246125391 is an apocalyptic number.

136246125391 is a deficient number, since it is larger than the sum of its proper divisors (1).

136246125391 is an equidigital number, since it uses as much as digits as its factorization.

136246125391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 43.

The spelling of 136246125391 in words is "one hundred thirty-six billion, two hundred forty-six million, one hundred twenty-five thousand, three hundred ninety-one".