131409039 has 16 divisors (see below), whose sum is σ = 179389440. Its totient is φ = 85526880.

The previous prime is 131409037. The next prime is 131409041. The reversal of 131409039 is 930904131.

It is an interprime number because it is at equal distance from previous prime (131409037) and next prime (131409041).

It is not a de Polignac number, because 131409039 - 2¹ = 131409037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131408997 and 131409015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131409037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70854 + ... + 72684.

It is an arithmetic number, because the mean of its divisors is an integer number (11211840).

Almost surely, 2^131409039 is an apocalyptic number.

131409039 is a deficient number, since it is larger than the sum of its proper divisors (47980401).

131409039 is a wasteful number, since it uses less digits than its factorization.

131409039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 131409039 is about 11463.3781670152. The cubic root of 131409039 is about 508.4033611549.

The spelling of 131409039 in words is "one hundred thirty-one million, four hundred nine thousand, thirty-nine".