1445115111 has 8 divisors (see below), whose sum is σ = 2101985664. Its totient is φ = 875827320.

The previous prime is 1445115101. The next prime is 1445115121. The reversal of 1445115111 is 1115115441.

It is an interprime number because it is at equal distance from previous prime (1445115101) and next prime (1445115121).

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

It is not a de Polignac number, because 1445115111 - 2⁵ = 1445115079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445115101) 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, 21895651 + ... + 21895716.

It is an arithmetic number, because the mean of its divisors is an integer number (262748208).

Almost surely, 2^1445115111 is an apocalyptic number.

1445115111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1445115111 is a deficient number, since it is larger than the sum of its proper divisors (656870553).

1445115111 is a wasteful number, since it uses less digits than its factorization.

1445115111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43791381.

The product of its digits is 400, while the sum is 24.

The square root of 1445115111 is about 38014.6696815848. The cubic root of 1445115111 is about 1130.5787389677.

The spelling of 1445115111 in words is "one billion, four hundred forty-five million, one hundred fifteen thousand, one hundred eleven".