131548158 has 32 divisors (see below), whose sum is σ = 334091520. Its totient is φ = 37585080.

The previous prime is 131548121. The next prime is 131548171. The reversal of 131548158 is 851845131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173628 + ... + 174383.

It is an arithmetic number, because the mean of its divisors is an integer number (10440360).

Almost surely, 2^131548158 is an apocalyptic number.

131548158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

131548158 is an abundant number, since it is smaller than the sum of its proper divisors (202543362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131548158 is a wasteful number, since it uses less digits than its factorization.

131548158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348029 (or 348023 counting only the distinct ones).

The product of its digits is 19200, while the sum is 36.

The square root of 131548158 is about 11469.4445375528. Note that the first 3 decimals coincide. The cubic root of 131548158 is about 508.5827085904.

It can be divided in two parts, 13154 and 8158, that added together give a palindrome (21312).

The spelling of 131548158 in words is "one hundred thirty-one million, five hundred forty-eight thousand, one hundred fifty-eight".