131888929105 has 8 divisors (see below), whose sum is σ = 158269500072. Its totient is φ = 105509286528.

The previous prime is 131888929099. The next prime is 131888929147. The reversal of 131888929105 is 501929888131.

It can be written as a sum of positive squares in 4 ways, for example, as 2306208529 + 129582720576 = 48023^2 + 359976^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131888929105 - 2³ = 131888929097 is a prime.

It is a super-2 number, since 2×131888929105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132517 + ... + 530413.

It is an arithmetic number, because the mean of its divisors is an integer number (19783687509).

Almost surely, 2^131888929105 is an apocalyptic number.

It is an amenable number.

131888929105 is a deficient number, since it is larger than the sum of its proper divisors (26380570967).

131888929105 is an equidigital number, since it uses as much as digits as its factorization.

131888929105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464195.

The product of its (nonzero) digits is 1244160, while the sum is 55.

The spelling of 131888929105 in words is "one hundred thirty-one billion, eight hundred eighty-eight million, nine hundred twenty-nine thousand, one hundred five".