131314646 has 4 divisors (see below), whose sum is σ = 196971972. Its totient is φ = 65657322.

The previous prime is 131314621. The next prime is 131314657. The reversal of 131314646 is 646413131.

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, 32828660 + ... + 32828663.

It is an arithmetic number, because the mean of its divisors is an integer number (49242993).

Almost surely, 2^131314646 is an apocalyptic number.

131314646 is a deficient number, since it is larger than the sum of its proper divisors (65657326).

131314646 is an equidigital number, since it uses as much as digits as its factorization.

131314646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65657325.

The product of its digits is 5184, while the sum is 29.

The square root of 131314646 is about 11459.2602728099. The cubic root of 131314646 is about 508.2816008509.

Adding to 131314646 its reverse (646413131), we get a palindrome (777727777).

The spelling of 131314646 in words is "one hundred thirty-one million, three hundred fourteen thousand, six hundred forty-six".