1125665164 has 24 divisors (see below), whose sum is σ = 2142052640. Its totient is φ = 514491264.

The previous prime is 1125665161. The next prime is 1125665197. The reversal of 1125665164 is 4615665211.

It is a super-2 number, since 2×1125665164² = 2534244122886293792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1125665161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99729 + ... + 110440.

Almost surely, 2^1125665164 is an apocalyptic number.

It is an amenable number.

1125665164 is a deficient number, since it is larger than the sum of its proper divisors (1016387476).

1125665164 is a wasteful number, since it uses less digits than its factorization.

1125665164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210289 (or 210287 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 1125665164 is about 33550.9338767194. The cubic root of 1125665164 is about 1040.2468484561.

The spelling of 1125665164 in words is "one billion, one hundred twenty-five million, six hundred sixty-five thousand, one hundred sixty-four".