2051631294 has 8 divisors (see below), whose sum is σ = 4103262600. Its totient is φ = 683877096.

The previous prime is 2051631287. The next prime is 2051631311. The reversal of 2051631294 is 4921361502.

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

2051631294 is an admirable number.

It is a super-2 number, since 2×2051631294² = 8418381933040228872, which contains 22 as substring.

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, 170969269 + ... + 170969280.

It is an arithmetic number, because the mean of its divisors is an integer number (512907825).

Almost surely, 2^2051631294 is an apocalyptic number.

2051631294 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2051631294 is a wasteful number, since it uses less digits than its factorization.

2051631294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341938554.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2051631294 is about 45294.9367369025. The cubic root of 2051631294 is about 1270.6709608944.

Adding to 2051631294 its reverse (4921361502), we get a palindrome (6972992796).

The spelling of 2051631294 in words is "two billion, fifty-one million, six hundred thirty-one thousand, two hundred ninety-four".