1445223111 has 8 divisors (see below), whose sum is σ = 1934642304. Its totient is φ = 959643000.

The previous prime is 1445223107. The next prime is 1445223119. The reversal of 1445223111 is 1113225441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1445223111 - 2² = 1445223107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445223119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958891 + ... + 960396.

It is an arithmetic number, because the mean of its divisors is an integer number (241830288).

Almost surely, 2^1445223111 is an apocalyptic number.

1445223111 is a deficient number, since it is larger than the sum of its proper divisors (489419193).

1445223111 is a wasteful number, since it uses less digits than its factorization.

1445223111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919541.

The product of its digits is 960, while the sum is 24.

The square root of 1445223111 is about 38016.0901592997. The cubic root of 1445223111 is about 1130.6069026901.

Adding to 1445223111 its reverse (1113225441), we get a palindrome (2558448552).

The spelling of 1445223111 in words is "one billion, four hundred forty-five million, two hundred twenty-three thousand, one hundred eleven".