131853030644 has 12 divisors (see below), whose sum is σ = 230745347364. Its totient is φ = 65925788544.

The previous prime is 131853030637. The next prime is 131853030689. The reversal of 131853030644 is 446030358131.

It can be written as a sum of positive squares in 2 ways, for example, as 90232950544 + 41620080100 = 300388^2 + 204010^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131853030598 and 131853030607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604172 + ... + 792924.

It is an arithmetic number, because the mean of its divisors is an integer number (19228778947).

Almost surely, 2^131853030644 is an apocalyptic number.

It is an amenable number.

131853030644 is a deficient number, since it is larger than the sum of its proper divisors (98892316720).

131853030644 is a wasteful number, since it uses less digits than its factorization.

131853030644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363394 (or 363392 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 131853030644 its reverse (446030358131), we get a palindrome (577883388775).

The spelling of 131853030644 in words is "one hundred thirty-one billion, eight hundred fifty-three million, thirty thousand, six hundred forty-four".