1445623427 has 2 divisors, whose sum is σ = 1445623428. Its totient is φ = 1445623426.

The previous prime is 1445623409. The next prime is 1445623451. The reversal of 1445623427 is 7243265441.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1445623427 - 2⁶ = 1445623363 is a prime.

It is not a weakly prime, because it can be changed into another prime (1445623027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722811713 + 722811714.

It is an arithmetic number, because the mean of its divisors is an integer number (722811714).

Almost surely, 2^1445623427 is an apocalyptic number.

1445623427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445623427 is an equidigital number, since it uses as much as digits as its factorization.

1445623427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 38.

The square root of 1445623427 is about 38021.3548811717. The cubic root of 1445623427 is about 1130.7112829404.

Adding to 1445623427 its reverse (7243265441), we get a palindrome (8688888868).

The spelling of 1445623427 in words is "one billion, four hundred forty-five million, six hundred twenty-three thousand, four hundred twenty-seven".