1145507111 has 8 divisors (see below), whose sum is σ = 1366070784. Its totient is φ = 939173400.

The previous prime is 1145507081. The next prime is 1145507117. The reversal of 1145507111 is 1117055411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145507111 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 (1145507117) 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 in 7 ways as a sum of consecutive naturals, for example, 3557315 + ... + 3557636.

It is an arithmetic number, because the mean of its divisors is an integer number (170758848).

Almost surely, 2^1145507111 is an apocalyptic number.

1145507111 is a deficient number, since it is larger than the sum of its proper divisors (220563673).

1145507111 is an equidigital number, since it uses as much as digits as its factorization.

1145507111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7114981.

The product of its (nonzero) digits is 700, while the sum is 26.

The square root of 1145507111 is about 33845.3410530903. The cubic root of 1145507111 is about 1046.3233803394.

The spelling of 1145507111 in words is "one billion, one hundred forty-five million, five hundred seven thousand, one hundred eleven".