149867975105 has 4 divisors (see below), whose sum is σ = 179841570132. Its totient is φ = 119894380080.

The previous prime is 149867975071. The next prime is 149867975107. The reversal of 149867975105 is 501579768941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25282272016 + 124585703089 = 159004^2 + 352967^2 .

It is not a de Polignac number, because 149867975105 - 2⁶ = 149867975041 is a prime.

It is a super-2 number, since 2×149867975105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149867975107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14986797506 + ... + 14986797515.

It is an arithmetic number, because the mean of its divisors is an integer number (44960392533).

Almost surely, 2^149867975105 is an apocalyptic number.

It is an amenable number.

149867975105 is a deficient number, since it is larger than the sum of its proper divisors (29973595027).

149867975105 is an equidigital number, since it uses as much as digits as its factorization.

149867975105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29973595026.

The product of its (nonzero) digits is 19051200, while the sum is 62.

The spelling of 149867975105 in words is "one hundred forty-nine billion, eight hundred sixty-seven million, nine hundred seventy-five thousand, one hundred five".