2131498775 has 108 divisors (see below), whose sum is σ = 3341411136. Its totient is φ = 1342656000.

The previous prime is 2131498643. The next prime is 2131498781. The reversal of 2131498775 is 5778941312.

It is not a de Polignac number, because 2131498775 - 2¹⁰ = 2131497751 is a prime.

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 107 ways as a sum of consecutive naturals, for example, 51987755 + ... + 51987795.

It is an arithmetic number, because the mean of its divisors is an integer number (30938992).

Almost surely, 2^2131498775 is an apocalyptic number.

2131498775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2131498775 is a deficient number, since it is larger than the sum of its proper divisors (1209912361).

2131498775 is a wasteful number, since it uses less digits than its factorization.

2131498775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 121 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The square root of 2131498775 is about 46168.1575872375. The cubic root of 2131498775 is about 1286.9500639395.

The spelling of 2131498775 in words is "two billion, one hundred thirty-one million, four hundred ninety-eight thousand, seven hundred seventy-five".