131143155 has 48 divisors (see below), whose sum is σ = 247919616. Its totient is φ = 58680960.

The previous prime is 131143153. The next prime is 131143211. The reversal of 131143155 is 551341131.

It is not a de Polignac number, because 131143155 - 2¹ = 131143153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131143153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25534 + ... + 30236.

It is an arithmetic number, because the mean of its divisors is an integer number (5164992).

Almost surely, 2^131143155 is an apocalyptic number.

131143155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131143155 is a deficient number, since it is larger than the sum of its proper divisors (116776461).

131143155 is a wasteful number, since it uses less digits than its factorization.

131143155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4748 (or 4735 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 131143155 is about 11451.7751898996. The cubic root of 131143155 is about 508.0602401851.

Adding to 131143155 its reverse (551341131), we get a palindrome (682484286).

The spelling of 131143155 in words is "one hundred thirty-one million, one hundred forty-three thousand, one hundred fifty-five".