1445261941 has 2 divisors, whose sum is σ = 1445261942. Its totient is φ = 1445261940.

The previous prime is 1445261933. The next prime is 1445261969. The reversal of 1445261941 is 1491625441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1299963025 + 145298916 = 36055^2 + 12054^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445261941 - 2³ = 1445261933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1445261941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445261141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722630970 + 722630971.

It is an arithmetic number, because the mean of its divisors is an integer number (722630971).

Almost surely, 2^1445261941 is an apocalyptic number.

It is an amenable number.

1445261941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445261941 is an equidigital number, since it uses as much as digits as its factorization.

1445261941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 37.

The square root of 1445261941 is about 38016.6008606766. The cubic root of 1445261941 is about 1130.6170282484.

The spelling of 1445261941 in words is "one billion, four hundred forty-five million, two hundred sixty-one thousand, nine hundred forty-one".