1145140111 has 16 divisors (see below), whose sum is σ = 1223810208. Its totient is φ = 1067776000.

The previous prime is 1145140109. The next prime is 1145140147. The reversal of 1145140111 is 1110415411.

It is a cyclic number.

It is not a de Polignac number, because 1145140111 - 2¹ = 1145140109 is a prime.

It is a super-2 number, since 2×1145140111² = 2622691747642184642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145140511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1178856 + ... + 1179826.

It is an arithmetic number, because the mean of its divisors is an integer number (76488138).

Almost surely, 2^1145140111 is an apocalyptic number.

1145140111 is a deficient number, since it is larger than the sum of its proper divisors (78670097).

1145140111 is a wasteful number, since it uses less digits than its factorization.

1145140111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562.

The product of its (nonzero) digits is 80, while the sum is 19.

The square root of 1145140111 is about 33839.9188976570. The cubic root of 1145140111 is about 1046.2116273021.

Adding to 1145140111 its reverse (1110415411), we get a palindrome (2255555522).

The spelling of 1145140111 in words is "one billion, one hundred forty-five million, one hundred forty thousand, one hundred eleven".