131171542 has 8 divisors (see below), whose sum is σ = 197788032. Its totient is φ = 65242200.

The previous prime is 131171527. The next prime is 131171591. The reversal of 131171542 is 245171131.

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

It is a congruent 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, 171309 + ... + 172072.

It is an arithmetic number, because the mean of its divisors is an integer number (24723504).

Almost surely, 2^131171542 is an apocalyptic number.

131171542 is a deficient number, since it is larger than the sum of its proper divisors (66616490).

131171542 is a wasteful number, since it uses less digits than its factorization.

131171542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343574.

The product of its digits is 840, while the sum is 25.

The square root of 131171542 is about 11453.0145376665. The cubic root of 131171542 is about 508.0968954609.

The spelling of 131171542 in words is "one hundred thirty-one million, one hundred seventy-one thousand, five hundred forty-two".