1264523193 has 12 divisors (see below), whose sum is σ = 1837741360. Its totient is φ = 837842616.

The previous prime is 1264523159. The next prime is 1264523243. The reversal of 1264523193 is 3913254621.

1264523193 is a `hidden beast` number, since 1 + 2 + 645 + 2 + 3 + 1 + 9 + 3 = 666.

It is not a de Polignac number, because 1264523193 - 2⁶ = 1264523129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1264523153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429523 + ... + 432456.

Almost surely, 2^1264523193 is an apocalyptic number.

It is an amenable number.

1264523193 is a deficient number, since it is larger than the sum of its proper divisors (573218167).

1264523193 is a wasteful number, since it uses less digits than its factorization.

1264523193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862148 (or 862145 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 1264523193 is about 35560.1348844461. The cubic root of 1264523193 is about 1081.3731941202.

The spelling of 1264523193 in words is "one billion, two hundred sixty-four million, five hundred twenty-three thousand, one hundred ninety-three".