131954739 has 16 divisors (see below), whose sum is σ = 204483840. Its totient is φ = 74124000.

The previous prime is 131954729. The next prime is 131954741. The reversal of 131954739 is 937459131.

It is not a de Polignac number, because 131954739 - 2¹³ = 131946547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131954739.

It is not an unprimeable number, because it can be changed into a prime (131954729) 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 15 ways as a sum of consecutive naturals, for example, 52012 + ... + 54489.

It is an arithmetic number, because the mean of its divisors is an integer number (12780240).

Almost surely, 2^131954739 is an apocalyptic number.

131954739 is a deficient number, since it is larger than the sum of its proper divisors (72529101).

131954739 is a wasteful number, since it uses less digits than its factorization.

131954739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106570.

The product of its digits is 102060, while the sum is 42.

The square root of 131954739 is about 11487.1553920020. The cubic root of 131954739 is about 509.1061351439.

The spelling of 131954739 in words is "one hundred thirty-one million, nine hundred fifty-four thousand, seven hundred thirty-nine".