1145620111 has 2 divisors, whose sum is σ = 1145620112. Its totient is φ = 1145620110.

The previous prime is 1145620093. The next prime is 1145620129. The reversal of 1145620111 is 1110265411.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1145620093) and next prime (1145620129).

It is a cyclic number.

It is not a de Polignac number, because 1145620111 - 2⁵ = 1145620079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145620211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572810055 + 572810056.

It is an arithmetic number, because the mean of its divisors is an integer number (572810056).

Almost surely, 2^1145620111 is an apocalyptic number.

1145620111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145620111 is an equidigital number, since it uses as much as digits as its factorization.

1145620111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 1145620111 is about 33847.0103701937. The cubic root of 1145620111 is about 1046.3577845066.

Adding to 1145620111 its reverse (1110265411), we get a palindrome (2255885522).

The spelling of 1145620111 in words is "one billion, one hundred forty-five million, six hundred twenty thousand, one hundred eleven".