131143955 has 8 divisors (see below), whose sum is σ = 158931504. Its totient is φ = 103876000.

The previous prime is 131143951. The next prime is 131143963. The reversal of 131143955 is 559341131.

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

It is not a de Polignac number, because 131143955 - 2² = 131143951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131143951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129341 + ... + 130350.

It is an arithmetic number, because the mean of its divisors is an integer number (19866438).

Almost surely, 2^131143955 is an apocalyptic number.

131143955 is a deficient number, since it is larger than the sum of its proper divisors (27787549).

131143955 is a wasteful number, since it uses less digits than its factorization.

131143955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259797.

The product of its digits is 8100, while the sum is 32.

The square root of 131143955 is about 11451.8101189288. The cubic root of 131143955 is about 508.0612732734.

The spelling of 131143955 in words is "one hundred thirty-one million, one hundred forty-three thousand, nine hundred fifty-five".