131564341705 has 4 divisors (see below), whose sum is σ = 157877210052. Its totient is φ = 105251473360.

The previous prime is 131564341693. The next prime is 131564341717. The reversal of 131564341705 is 507143465131.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (131564341693) and next prime (131564341717).

It can be written as a sum of positive squares in 2 ways, for example, as 87855331216 + 43709010489 = 296404^2 + 209067^2 .

It is not a de Polignac number, because 131564341705 - 2¹³ = 131564333513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13156434166 + ... + 13156434175.

It is an arithmetic number, because the mean of its divisors is an integer number (39469302513).

Almost surely, 2^131564341705 is an apocalyptic number.

It is an amenable number.

131564341705 is a deficient number, since it is larger than the sum of its proper divisors (26312868347).

131564341705 is an equidigital number, since it uses as much as digits as its factorization.

131564341705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26312868346.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 131564341705 in words is "one hundred thirty-one billion, five hundred sixty-four million, three hundred forty-one thousand, seven hundred five".