1264145433 has 8 divisors (see below), whose sum is σ = 1724725728. Its totient is φ = 823164384.

The previous prime is 1264145431. The next prime is 1264145437. The reversal of 1264145433 is 3345414621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1264145433 - 2¹ = 1264145431 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1264145394 and 1264145403.

It is not an unprimeable number, because it can be changed into a prime (1264145431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4899660 + ... + 4899917.

It is an arithmetic number, because the mean of its divisors is an integer number (215590716).

Almost surely, 2^1264145433 is an apocalyptic number.

It is an amenable number.

1264145433 is a deficient number, since it is larger than the sum of its proper divisors (460580295).

1264145433 is an equidigital number, since it uses as much as digits as its factorization.

1264145433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9799623.

The product of its digits is 34560, while the sum is 33.

The square root of 1264145433 is about 35554.8229217922. The cubic root of 1264145433 is about 1081.2655012958.

The spelling of 1264145433 in words is "one billion, two hundred sixty-four million, one hundred forty-five thousand, four hundred thirty-three".