131730553 has 8 divisors (see below), whose sum is σ = 138801600. Its totient is φ = 124673328.

The previous prime is 131730527. The next prime is 131730583. The reversal of 131730553 is 355037131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131730553 - 2²¹ = 129633401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131730583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20403 + ... + 26071.

It is an arithmetic number, because the mean of its divisors is an integer number (17350200).

Almost surely, 2^131730553 is an apocalyptic number.

It is an amenable number.

131730553 is a deficient number, since it is larger than the sum of its proper divisors (7071047).

131730553 is a wasteful number, since it uses less digits than its factorization.

131730553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6911.

The product of its (nonzero) digits is 4725, while the sum is 28.

The square root of 131730553 is about 11477.3931273613. The cubic root of 131730553 is about 508.8176544961.

Adding to 131730553 its reverse (355037131), we get a palindrome (486767684).

The spelling of 131730553 in words is "one hundred thirty-one million, seven hundred thirty thousand, five hundred fifty-three".