1345111 has 4 divisors (see below), whose sum is σ = 1367224. Its totient is φ = 1323000.

The previous prime is 1345079. The next prime is 1345117. The reversal of 1345111 is 1115431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1115431 = 23 ⋅48497.

It is a cyclic number.

It is not a de Polignac number, because 1345111 - 2⁵ = 1345079 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 (1345117) 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, 10965 + ... + 11086.

It is an arithmetic number, because the mean of its divisors is an integer number (341806).

2^1345111 is an apocalyptic number.

1345111 is a deficient number, since it is larger than the sum of its proper divisors (22113).

1345111 is an equidigital number, since it uses as much as digits as its factorization.

1345111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22112.

The product of its digits is 60, while the sum is 16.

The square root of 1345111 is about 1159.7892049851. The cubic root of 1345111 is about 110.3873670607.

The spelling of 1345111 in words is "one million, three hundred forty-five thousand, one hundred eleven".