131770548 has 288 divisors, whose sum is σ = 452524800. Its totient is φ = 31352832.

The previous prime is 131770547. The next prime is 131770589. The reversal of 131770548 is 845077131.

131770548 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131770547) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1805040 + ... + 1805112.

Almost surely, 2^131770548 is an apocalyptic number.

131770548 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131770548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226262400).

131770548 is an abundant number, since it is smaller than the sum of its proper divisors (320754252).

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

131770548 is a wasteful number, since it uses less digits than its factorization.

131770548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 131770548 is about 11479.1353332906. The cubic root of 131770548 is about 508.8691436975.

Subtracting from 131770548 its product of nonzero digits (23520), we obtain a triangular number (131747028 = T₁₆₂₃₂).

The spelling of 131770548 in words is "one hundred thirty-one million, seven hundred seventy thousand, five hundred forty-eight".