1264133145 has 32 divisors (see below), whose sum is σ = 2212945920. Its totient is φ = 611119040.

The previous prime is 1264133131. The next prime is 1264133161. The reversal of 1264133145 is 5413314621.

It is not a de Polignac number, because 1264133145 - 2⁶ = 1264133081 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 46216 + ... + 68294.

It is an arithmetic number, because the mean of its divisors is an integer number (69154560).

Almost surely, 2^1264133145 is an apocalyptic number.

1264133145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1264133145 is a deficient number, since it is larger than the sum of its proper divisors (948812775).

1264133145 is a wasteful number, since it uses less digits than its factorization.

1264133145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22445.

The product of its digits is 8640, while the sum is 30.

The square root of 1264133145 is about 35554.6501178116. The cubic root of 1264133145 is about 1081.2619978398.

Adding to 1264133145 its reverse (5413314621), we get a palindrome (6677447766).

The spelling of 1264133145 in words is "one billion, two hundred sixty-four million, one hundred thirty-three thousand, one hundred forty-five".