1144501961 has 2 divisors, whose sum is σ = 1144501962. Its totient is φ = 1144501960.

The previous prime is 1144501913. The next prime is 1144502017. The reversal of 1144501961 is 1691054411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 856147600 + 288354361 = 29260^2 + 16981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144501961 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1144501901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572250980 + 572250981.

It is an arithmetic number, because the mean of its divisors is an integer number (572250981).

Almost surely, 2^1144501961 is an apocalyptic number.

It is an amenable number.

1144501961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144501961 is an equidigital number, since it uses as much as digits as its factorization.

1144501961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 1144501961 is about 33830.4886308194. The cubic root of 1144501961 is about 1046.0172510855.

The spelling of 1144501961 in words is "one billion, one hundred forty-four million, five hundred one thousand, nine hundred sixty-one".