2131449529 has 8 divisors (see below), whose sum is σ = 2327168160. Its totient is φ = 1936056000.

The previous prime is 2131449527. The next prime is 2131449539. The reversal of 2131449529 is 9259441312.

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 2131449529 - 2¹ = 2131449527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131449491 and 2131449500.

It is not an unprimeable number, because it can be changed into a prime (2131449521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67459 + ... + 93880.

It is an arithmetic number, because the mean of its divisors is an integer number (290896020).

Almost surely, 2^2131449529 is an apocalyptic number.

It is an amenable number.

2131449529 is a deficient number, since it is larger than the sum of its proper divisors (195718631).

2131449529 is a wasteful number, since it uses less digits than its factorization.

2131449529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162551.

The product of its digits is 77760, while the sum is 40.

The square root of 2131449529 is about 46167.6242512001. The cubic root of 2131449529 is about 1286.9401526615.

The spelling of 2131449529 in words is "two billion, one hundred thirty-one million, four hundred forty-nine thousand, five hundred twenty-nine".