131949185 has 8 divisors (see below), whose sum is σ = 159402600. Its totient is φ = 104850304.

The previous prime is 131949149. The next prime is 131949199. The reversal of 131949185 is 581949131.

It can be written as a sum of positive squares in 4 ways, for example, as 1281424 + 130667761 = 1132^2 + 11431^2 .

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 131949185 - 2¹⁰ = 131948161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87812 + ... + 89301.

It is an arithmetic number, because the mean of its divisors is an integer number (19925325).

Almost surely, 2^131949185 is an apocalyptic number.

It is an amenable number.

131949185 is a deficient number, since it is larger than the sum of its proper divisors (27453415).

131949185 is a wasteful number, since it uses less digits than its factorization.

131949185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177267.

The product of its digits is 38880, while the sum is 41.

The square root of 131949185 is about 11486.9136411832. The cubic root of 131949185 is about 509.0989922524.

The spelling of 131949185 in words is "one hundred thirty-one million, nine hundred forty-nine thousand, one hundred eighty-five".