1145188667 has 4 divisors (see below), whose sum is σ = 1308787056. Its totient is φ = 981590280.

The previous prime is 1145188637. The next prime is 1145188679. The reversal of 1145188667 is 7668815411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7668815411 = 23 ⋅333426757.

It is a cyclic number.

It is not a de Polignac number, because 1145188667 - 2²⁴ = 1128411451 is a prime.

It is a super-2 number, since 2×1145188667² = 2622914166050473778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145188637) 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, 81799184 + ... + 81799197.

It is an arithmetic number, because the mean of its divisors is an integer number (327196764).

Almost surely, 2^1145188667 is an apocalyptic number.

1145188667 is a deficient number, since it is larger than the sum of its proper divisors (163598389).

1145188667 is an equidigital number, since it uses as much as digits as its factorization.

1145188667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163598388.

The product of its digits is 322560, while the sum is 47.

The square root of 1145188667 is about 33840.6363267596. The cubic root of 1145188667 is about 1046.2264141779.

The spelling of 1145188667 in words is "one billion, one hundred forty-five million, one hundred eighty-eight thousand, six hundred sixty-seven".