131503452657 has 4 divisors (see below), whose sum is σ = 175337936880. Its totient is φ = 87668968436.

The previous prime is 131503452599. The next prime is 131503452677. The reversal of 131503452657 is 756254305131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131503452657 - 2¹⁵ = 131503419889 is a prime.

It is a super-3 number, since 3×131503452657³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (131503452677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21917242107 + ... + 21917242112.

It is an arithmetic number, because the mean of its divisors is an integer number (43834484220).

Almost surely, 2^131503452657 is an apocalyptic number.

It is an amenable number.

131503452657 is a deficient number, since it is larger than the sum of its proper divisors (43834484223).

131503452657 is an equidigital number, since it uses as much as digits as its factorization.

131503452657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43834484222.

The product of its (nonzero) digits is 378000, while the sum is 42.

Adding to 131503452657 its reverse (756254305131), we get a palindrome (887757757788).

The spelling of 131503452657 in words is "one hundred thirty-one billion, five hundred three million, four hundred fifty-two thousand, six hundred fifty-seven".