131773628 has 12 divisors (see below), whose sum is σ = 263547312. Its totient is φ = 56474400.

The previous prime is 131773619. The next prime is 131773633. The reversal of 131773628 is 826377131.

131773628 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

131773628 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 131773591 and 131773600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2353073 + ... + 2353128.

It is an arithmetic number, because the mean of its divisors is an integer number (21962276).

Almost surely, 2^131773628 is an apocalyptic number.

It is an amenable number.

131773628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131773628 is a wasteful number, since it uses less digits than its factorization.

131773628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4706212 (or 4706210 counting only the distinct ones).

The product of its digits is 42336, while the sum is 38.

The square root of 131773628 is about 11479.2694889527. The cubic root of 131773628 is about 508.8731084295.

The spelling of 131773628 in words is "one hundred thirty-one million, seven hundred seventy-three thousand, six hundred twenty-eight".