1445225407 has 4 divisors (see below), whose sum is σ = 1460124736. Its totient is φ = 1430326080.

The previous prime is 1445225381. The next prime is 1445225423. The reversal of 1445225407 is 7045225441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1445225407 - 2⁷ = 1445225279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445225107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7449519 + ... + 7449712.

It is an arithmetic number, because the mean of its divisors is an integer number (365031184).

Almost surely, 2^1445225407 is an apocalyptic number.

1445225407 is a deficient number, since it is larger than the sum of its proper divisors (14899329).

1445225407 is an equidigital number, since it uses as much as digits as its factorization.

1445225407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14899328.

The product of its (nonzero) digits is 44800, while the sum is 34.

The square root of 1445225407 is about 38016.1203570275. The cubic root of 1445225407 is about 1130.6075014147.

Adding to 1445225407 its sum of digits (34), we get a palindrome (1445225441).

The spelling of 1445225407 in words is "one billion, four hundred forty-five million, two hundred twenty-five thousand, four hundred seven".