131855501 has 8 divisors (see below), whose sum is σ = 137211360. Its totient is φ = 126603792.

The previous prime is 131855473. The next prime is 131855533. The reversal of 131855501 is 105558131.

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 131855501 - 2²⁶ = 64746637 is a prime.

It is a super-2 number, since 2×131855501² = 34771746287922002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131855551) 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, 23450 + ... + 28523.

It is an arithmetic number, because the mean of its divisors is an integer number (17151420).

Almost surely, 2^131855501 is an apocalyptic number.

It is an amenable number.

131855501 is a deficient number, since it is larger than the sum of its proper divisors (5355859).

131855501 is an equidigital number, since it uses as much as digits as its factorization.

131855501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52075.

The product of its (nonzero) digits is 3000, while the sum is 29.

The square root of 131855501 is about 11482.8350593397. The cubic root of 131855501 is about 508.9784768633.

The spelling of 131855501 in words is "one hundred thirty-one million, eight hundred fifty-five thousand, five hundred one".