149113784856871 has 2 divisors, whose sum is σ = 149113784856872. Its totient is φ = 149113784856870.

The previous prime is 149113784856851. The next prime is 149113784856977. The reversal of 149113784856871 is 178658487311941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149113784856871 - 2²¹ = 149113782759719 is a prime.

It is a super-2 number, since 2×149113784856871² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 149113784856794 and 149113784856803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149113784856851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74556892428435 + 74556892428436.

It is an arithmetic number, because the mean of its divisors is an integer number (74556892428436).

Almost surely, 2^{149113784856871} is an apocalyptic number.

149113784856871 is a deficient number, since it is larger than the sum of its proper divisors (1).

149113784856871 is an equidigital number, since it uses as much as digits as its factorization.

149113784856871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 325140480, while the sum is 73.

The spelling of 149113784856871 in words is "one hundred forty-nine trillion, one hundred thirteen billion, seven hundred eighty-four million, eight hundred fifty-six thousand, eight hundred seventy-one".