1445623061 has 2 divisors, whose sum is σ = 1445623062. Its totient is φ = 1445623060.

The previous prime is 1445623057. The next prime is 1445623099. The reversal of 1445623061 is 1603265441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 830880625 + 614742436 = 28825^2 + 24794^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445623061 - 2² = 1445623057 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445623051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722811530 + 722811531.

It is an arithmetic number, because the mean of its divisors is an integer number (722811531).

Almost surely, 2^1445623061 is an apocalyptic number.

It is an amenable number.

1445623061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445623061 is an equidigital number, since it uses as much as digits as its factorization.

1445623061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1445623061 is about 38021.3500680867. The cubic root of 1445623061 is about 1130.7111875167.

The spelling of 1445623061 in words is "one billion, four hundred forty-five million, six hundred twenty-three thousand, sixty-one".