131325566 has 4 divisors (see below), whose sum is σ = 196988352. Its totient is φ = 65662782.

The previous prime is 131325541. The next prime is 131325577. The reversal of 131325566 is 665523131.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32831390 + ... + 32831393.

It is an arithmetic number, because the mean of its divisors is an integer number (49247088).

Almost surely, 2^131325566 is an apocalyptic number.

131325566 is a deficient number, since it is larger than the sum of its proper divisors (65662786).

131325566 is an equidigital number, since it uses as much as digits as its factorization.

131325566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65662785.

The product of its digits is 16200, while the sum is 32.

The square root of 131325566 is about 11459.7367334507. The cubic root of 131325566 is about 508.2956898638.

Adding to 131325566 its reverse (665523131), we get a palindrome (796848697).

The spelling of 131325566 in words is "one hundred thirty-one million, three hundred twenty-five thousand, five hundred sixty-six".