148887121117 has 4 divisors (see below), whose sum is σ = 170156709856. Its totient is φ = 127617532380.

The previous prime is 148887121109. The next prime is 148887121151. The reversal of 148887121117 is 711121788841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 711121788841 = 20887 ⋅34046143.

It is a cyclic number.

It is not a de Polignac number, because 148887121117 - 2³ = 148887121109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148887121417) 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, 10634794359 + ... + 10634794372.

It is an arithmetic number, because the mean of its divisors is an integer number (42539177464).

Almost surely, 2^148887121117 is an apocalyptic number.

It is an amenable number.

148887121117 is a deficient number, since it is larger than the sum of its proper divisors (21269588739).

148887121117 is an equidigital number, since it uses as much as digits as its factorization.

148887121117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21269588738.

The product of its digits is 200704, while the sum is 49.

The spelling of 148887121117 in words is "one hundred forty-eight billion, eight hundred eighty-seven million, one hundred twenty-one thousand, one hundred seventeen".