1445612497 has 4 divisors (see below), whose sum is σ = 1652128576. Its totient is φ = 1239096420.

The previous prime is 1445612477. The next prime is 1445612521. The reversal of 1445612497 is 7942165441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1445612497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1445612447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103258029 + ... + 103258042.

It is an arithmetic number, because the mean of its divisors is an integer number (413032144).

Almost surely, 2^1445612497 is an apocalyptic number.

It is an amenable number.

1445612497 is a deficient number, since it is larger than the sum of its proper divisors (206516079).

1445612497 is an equidigital number, since it uses as much as digits as its factorization.

1445612497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206516078.

The product of its digits is 241920, while the sum is 43.

The square root of 1445612497 is about 38021.2111458854. The cubic root of 1445612497 is about 1130.7084332574.

The spelling of 1445612497 in words is "one billion, four hundred forty-five million, six hundred twelve thousand, four hundred ninety-seven".