2051723146 has 64 divisors (see below), whose sum is σ = 3545856000. Its totient is φ = 881843200.

The previous prime is 2051723143. The next prime is 2051723161. The reversal of 2051723146 is 6413271502.

It is not an unprimeable number, because it can be changed into a prime (2051723143) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 10741911 + ... + 10742101.

It is an arithmetic number, because the mean of its divisors is an integer number (55404000).

Almost surely, 2^2051723146 is an apocalyptic number.

2051723146 is a deficient number, since it is larger than the sum of its proper divisors (1494132854).

2051723146 is a wasteful number, since it uses less digits than its factorization.

2051723146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2051723146 is about 45295.9506578679. The cubic root of 2051723146 is about 1270.6899233541.

Adding to 2051723146 its reverse (6413271502), we get a palindrome (8464994648).

The spelling of 2051723146 in words is "two billion, fifty-one million, seven hundred twenty-three thousand, one hundred forty-six".