131645095 has 4 divisors (see below), whose sum is σ = 157974120. Its totient is φ = 105316072.

The previous prime is 131645089. The next prime is 131645099. The reversal of 131645095 is 590546131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 590546131 = 7 ⋅84363733.

It is a cyclic number.

It is not a de Polignac number, because 131645095 - 2¹¹ = 131643047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131645095.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131645099) 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, 13164505 + ... + 13164514.

It is an arithmetic number, because the mean of its divisors is an integer number (39493530).

Almost surely, 2^131645095 is an apocalyptic number.

131645095 is a deficient number, since it is larger than the sum of its proper divisors (26329025).

131645095 is an equidigital number, since it uses as much as digits as its factorization.

131645095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26329024.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 131645095 is about 11473.6696396576. The cubic root of 131645095 is about 508.7076017043.

The spelling of 131645095 in words is "one hundred thirty-one million, six hundred forty-five thousand, ninety-five".