131404146 has 8 divisors (see below), whose sum is σ = 262808304. Its totient is φ = 43801380.

The previous prime is 131404121. The next prime is 131404183. The reversal of 131404146 is 641404131.

It is a sphenic number, since it is the product of 3 distinct primes.

131404146 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10950340 + ... + 10950351.

It is an arithmetic number, because the mean of its divisors is an integer number (32851038).

Almost surely, 2^131404146 is an apocalyptic number.

131404146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131404146 is a wasteful number, since it uses less digits than its factorization.

131404146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21900696.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 131404146 is about 11463.1647462644. The cubic root of 131404146 is about 508.3970509636.

Adding to 131404146 its reverse (641404131), we get a palindrome (772808277).

The spelling of 131404146 in words is "one hundred thirty-one million, four hundred four thousand, one hundred forty-six".