131505254 has 4 divisors (see below), whose sum is σ = 197257884. Its totient is φ = 65752626.

The previous prime is 131505233. The next prime is 131505263. The reversal of 131505254 is 452505131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32876312 + ... + 32876315.

It is an arithmetic number, because the mean of its divisors is an integer number (49314471).

Almost surely, 2^131505254 is an apocalyptic number.

131505254 is a deficient number, since it is larger than the sum of its proper divisors (65752630).

131505254 is an equidigital number, since it uses as much as digits as its factorization.

131505254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65752629.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 131505254 is about 11467.5740241779. The cubic root of 131505254 is about 508.5274117179.

The spelling of 131505254 in words is "one hundred thirty-one million, five hundred five thousand, two hundred fifty-four".