1125505667 has 16 divisors (see below), whose sum is σ = 1379766528. Its totient is φ = 903413280.

The previous prime is 1125505613. The next prime is 1125505669. The reversal of 1125505667 is 7665055211.

It is not a de Polignac number, because 1125505667 - 2¹⁰ = 1125504643 is a prime.

It is a super-2 number, since 2×1125505667² = 2533526012898229778, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1125505667.

It is not an unprimeable number, because it can be changed into a prime (1125505669) 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, 167813 + ... + 174390.

It is an arithmetic number, because the mean of its divisors is an integer number (86235408).

Almost surely, 2^1125505667 is an apocalyptic number.

1125505667 is a deficient number, since it is larger than the sum of its proper divisors (254260861).

1125505667 is a wasteful number, since it uses less digits than its factorization.

1125505667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342250.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 1125505667 is about 33548.5568542076. The cubic root of 1125505667 is about 1040.1977148138.

The spelling of 1125505667 in words is "one billion, one hundred twenty-five million, five hundred five thousand, six hundred sixty-seven".