1445533541 has 2 divisors, whose sum is σ = 1445533542. Its totient is φ = 1445533540.

The previous prime is 1445533469. The next prime is 1445533549. The reversal of 1445533541 is 1453355441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1079385316 + 366148225 = 32854^2 + 19135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1445533541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445533549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722766770 + 722766771.

It is an arithmetic number, because the mean of its divisors is an integer number (722766771).

Almost surely, 2^1445533541 is an apocalyptic number.

It is an amenable number.

1445533541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445533541 is an equidigital number, since it uses as much as digits as its factorization.

1445533541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 35.

The square root of 1445533541 is about 38020.1728165457. The cubic root of 1445533541 is about 1130.6878473257.

Adding to 1445533541 its reverse (1453355441), we get a palindrome (2898888982).

The spelling of 1445533541 in words is "one billion, four hundred forty-five million, five hundred thirty-three thousand, five hundred forty-one".