1444915141 has 2 divisors, whose sum is σ = 1444915142. Its totient is φ = 1444915140.

The previous prime is 1444915123. The next prime is 1444915183. The reversal of 1444915141 is 1415194441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 912644100 + 532271041 = 30210^2 + 23071^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444915141 - 2⁷ = 1444915013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1444915097 and 1444915106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444918141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722457570 + 722457571.

It is an arithmetic number, because the mean of its divisors is an integer number (722457571).

Almost surely, 2^1444915141 is an apocalyptic number.

It is an amenable number.

1444915141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444915141 is an equidigital number, since it uses as much as digits as its factorization.

1444915141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 34.

The square root of 1444915141 is about 38012.0394217411. The cubic root of 1444915141 is about 1130.5265880450.

The spelling of 1444915141 in words is "one billion, four hundred forty-four million, nine hundred fifteen thousand, one hundred forty-one".