2131505774 has 8 divisors (see below), whose sum is σ = 3200303928. Its totient is φ = 1064737800.

The previous prime is 2131505707. The next prime is 2131505797. The reversal of 2131505774 is 4775051312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 504917 + ... + 509120.

It is an arithmetic number, because the mean of its divisors is an integer number (400037991).

Almost surely, 2^2131505774 is an apocalyptic number.

2131505774 is a deficient number, since it is larger than the sum of its proper divisors (1068798154).

2131505774 is a wasteful number, since it uses less digits than its factorization.

2131505774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015090.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 2131505774 is about 46168.2333861715. The cubic root of 2131505774 is about 1286.9514725499.

The spelling of 2131505774 in words is "two billion, one hundred thirty-one million, five hundred five thousand, seven hundred seventy-four".