131741478 has 96 divisors (see below), whose sum is σ = 340179840. Its totient is φ = 37791360.

The previous prime is 131741431. The next prime is 131741507. The reversal of 131741478 is 874147131.

131741478 is a `hidden beast` number, since 13 + 174 + 1 + 478 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (18816) is a multiple of the sum of its prime factors (1344).

It is a congruent number.

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, 100926 + ... + 102222.

It is an arithmetic number, because the mean of its divisors is an integer number (3543540).

Almost surely, 2^131741478 is an apocalyptic number.

131741478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131741478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170089920).

131741478 is an abundant number, since it is smaller than the sum of its proper divisors (208438362).

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

131741478 is a wasteful number, since it uses less digits than its factorization.

131741478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 1332 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 131741478 is about 11477.8690530952. The cubic root of 131741478 is about 508.8317202768.

The spelling of 131741478 in words is "one hundred thirty-one million, seven hundred forty-one thousand, four hundred seventy-eight".