134261323787 has 2 divisors, whose sum is σ = 134261323788. Its totient is φ = 134261323786.

The previous prime is 134261323739. The next prime is 134261323883. The reversal of 134261323787 is 787323162431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134261323787 - 2²² = 134257129483 is a prime.

It is a super-2 number, since 2×134261323787² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134261323187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67130661893 + 67130661894.

It is an arithmetic number, because the mean of its divisors is an integer number (67130661894).

Almost surely, 2^134261323787 is an apocalyptic number.

134261323787 is a deficient number, since it is larger than the sum of its proper divisors (1).

134261323787 is an equidigital number, since it uses as much as digits as its factorization.

134261323787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 47.

The spelling of 134261323787 in words is "one hundred thirty-four billion, two hundred sixty-one million, three hundred twenty-three thousand, seven hundred eighty-seven".