1445906513 has 2 divisors, whose sum is σ = 1445906514. Its totient is φ = 1445906512.

The previous prime is 1445906489. The next prime is 1445906537. The reversal of 1445906513 is 3156095441.

It is a balanced prime because it is at equal distance from previous prime (1445906489) and next prime (1445906537).

It can be written as a sum of positive squares in only one way, i.e., 1081554769 + 364351744 = 32887^2 + 19088^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445906513 - 2⁸ = 1445906257 is a prime.

It is not a weakly prime, because it can be changed into another prime (1445906573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722953256 + 722953257.

It is an arithmetic number, because the mean of its divisors is an integer number (722953257).

Almost surely, 2^1445906513 is an apocalyptic number.

It is an amenable number.

1445906513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445906513 is an equidigital number, since it uses as much as digits as its factorization.

1445906513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 1445906513 is about 38025.0774226694. The cubic root of 1445906513 is about 1130.7850844660.

The spelling of 1445906513 in words is "one billion, four hundred forty-five million, nine hundred six thousand, five hundred thirteen".