143195131 has 8 divisors (see below), whose sum is σ = 151798320. Its totient is φ = 134611968.

The previous prime is 143195119. The next prime is 143195137. The reversal of 143195131 is 131591341.

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

It is a cyclic number.

It is not a de Polignac number, because 143195131 - 2⁵ = 143195099 is a prime.

It is a super-2 number, since 2×143195131² = 41009691084214322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143195131.

It is not an unprimeable number, because it can be changed into a prime (143195137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11260 + ... + 20326.

It is an arithmetic number, because the mean of its divisors is an integer number (18974790).

Almost surely, 2^143195131 is an apocalyptic number.

143195131 is a deficient number, since it is larger than the sum of its proper divisors (8603189).

143195131 is an equidigital number, since it uses as much as digits as its factorization.

143195131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10013.

The product of its digits is 1620, while the sum is 28.

The square root of 143195131 is about 11966.4167986912. The cubic root of 143195131 is about 523.1699011850.

The spelling of 143195131 in words is "one hundred forty-three million, one hundred ninety-five thousand, one hundred thirty-one".