131314645 has 48 divisors (see below), whose sum is σ = 200559744. Its totient is φ = 80784000.

The previous prime is 131314621. The next prime is 131314657. The reversal of 131314645 is 546413131.

It is not a de Polignac number, because 131314645 - 2⁹ = 131314133 is a prime.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 427582 + ... + 427888.

It is an arithmetic number, because the mean of its divisors is an integer number (4178328).

Almost surely, 2^131314645 is an apocalyptic number.

It is an amenable number.

131314645 is a deficient number, since it is larger than the sum of its proper divisors (69245099).

131314645 is a wasteful number, since it uses less digits than its factorization.

131314645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 431 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 131314645 is about 11459.2602291771. The cubic root of 131314645 is about 508.2815995606.

Adding to 131314645 its reverse (546413131), we get a palindrome (677727776).

The spelling of 131314645 in words is "one hundred thirty-one million, three hundred fourteen thousand, six hundred forty-five".