2144976901 has 2 divisors, whose sum is σ = 2144976902. Its totient is φ = 2144976900.

The previous prime is 2144976871. The next prime is 2144976931. The reversal of 2144976901 is 1096794412.

It is a balanced prime because it is at equal distance from previous prime (2144976871) and next prime (2144976931).

It can be written as a sum of positive squares in only one way, i.e., 2002652001 + 142324900 = 44751^2 + 11930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2144976901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2144976931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072488450 + 1072488451.

It is an arithmetic number, because the mean of its divisors is an integer number (1072488451).

Almost surely, 2^2144976901 is an apocalyptic number.

It is an amenable number.

2144976901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144976901 is an equidigital number, since it uses as much as digits as its factorization.

2144976901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 2144976901 is about 46313.8953339060. The cubic root of 2144976901 is about 1289.6569608467.

The spelling of 2144976901 in words is "two billion, one hundred forty-four million, nine hundred seventy-six thousand, nine hundred one".