131354505 has 48 divisors (see below), whose sum is σ = 243347520. Its totient is φ = 65349504.

The previous prime is 131354479. The next prime is 131354567. The reversal of 131354505 is 505453131.

It is not a de Polignac number, because 131354505 - 2¹⁸ = 131092361 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56139 + ... + 58431.

It is an arithmetic number, because the mean of its divisors is an integer number (5069740).

Almost surely, 2^131354505 is an apocalyptic number.

131354505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131354505 is a deficient number, since it is larger than the sum of its proper divisors (111993015).

131354505 is a wasteful number, since it uses less digits than its factorization.

131354505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390 (or 2387 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 131354505 is about 11460.9993019806. Note that the first 3 decimals coincide. The cubic root of 131354505 is about 508.3330232612. Note that the first 3 decimals are identical.

The spelling of 131354505 in words is "one hundred thirty-one million, three hundred fifty-four thousand, five hundred five".