1445012515 has 4 divisors (see below), whose sum is σ = 1734015024. Its totient is φ = 1156010008.

The previous prime is 1445012489. The next prime is 1445012557. The reversal of 1445012515 is 5152105441.

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 1445012515 - 2⁹ = 1445012003 is a prime.

It is a super-2 number, since 2×1445012515² = 4176122337013250450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144501247 + ... + 144501256.

It is an arithmetic number, because the mean of its divisors is an integer number (433503756).

Almost surely, 2^1445012515 is an apocalyptic number.

1445012515 is a deficient number, since it is larger than the sum of its proper divisors (289002509).

1445012515 is an equidigital number, since it uses as much as digits as its factorization.

1445012515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289002508.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 1445012515 is about 38013.3202312032. The cubic root of 1445012515 is about 1130.5519831749.

Adding to 1445012515 its reverse (5152105441), we get a palindrome (6597117956).

The spelling of 1445012515 in words is "one billion, four hundred forty-five million, twelve thousand, five hundred fifteen".