131535230352451 has 4 divisors (see below), whose sum is σ = 131535360203632. Its totient is φ = 131535100501272.

The previous prime is 131535230352397. The next prime is 131535230352481. The reversal of 131535230352451 is 154253032535131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131535230352451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131535230352398 and 131535230352407.

It is not an unprimeable number, because it can be changed into a prime (131535230352481) 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, 63394095 + ... + 65436088.

It is an arithmetic number, because the mean of its divisors is an integer number (32883840050908).

Almost surely, 2^{131535230352451} is an apocalyptic number.

131535230352451 is a deficient number, since it is larger than the sum of its proper divisors (129851181).

131535230352451 is a wasteful number, since it uses less digits than its factorization.

131535230352451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129851180.

The product of its (nonzero) digits is 810000, while the sum is 43.

Adding to 131535230352451 its reverse (154253032535131), we get a palindrome (285788262887582).

The spelling of 131535230352451 in words is "one hundred thirty-one trillion, five hundred thirty-five billion, two hundred thirty million, three hundred fifty-two thousand, four hundred fifty-one".