131708145825 has 144 divisors (see below), whose sum is σ = 260277240000. Its totient is φ = 65117364480.

The previous prime is 131708145781. The next prime is 131708145853. The reversal of 131708145825 is 528541807131.

131708145825 is a `hidden beast` number, since 1 + 3 + 170 + 8 + 1 + 458 + 25 = 666.

It is not a de Polignac number, because 131708145825 - 2²¹ = 131706048673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 28328101 + ... + 28332749.

Almost surely, 2^131708145825 is an apocalyptic number.

131708145825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131708145825 is a deficient number, since it is larger than the sum of its proper divisors (128569094175).

131708145825 is a wasteful number, since it uses less digits than its factorization.

131708145825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4781 (or 4723 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The spelling of 131708145825 in words is "one hundred thirty-one billion, seven hundred eight million, one hundred forty-five thousand, eight hundred twenty-five".