131601622 has 4 divisors (see below), whose sum is σ = 197402436. Its totient is φ = 65800810.

The previous prime is 131601611. The next prime is 131601643. The reversal of 131601622 is 226106131.

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

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 131601593 and 131601602.

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, 32900404 + ... + 32900407.

It is an arithmetic number, because the mean of its divisors is an integer number (49350609).

Almost surely, 2^131601622 is an apocalyptic number.

131601622 is a deficient number, since it is larger than the sum of its proper divisors (65800814).

131601622 is an equidigital number, since it uses as much as digits as its factorization.

131601622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65800813.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 131601622 is about 11471.7750152276. The cubic root of 131601622 is about 508.6515989079.

Adding to 131601622 its reverse (226106131), we get a palindrome (357707753).

The spelling of 131601622 in words is "one hundred thirty-one million, six hundred one thousand, six hundred twenty-two".