1264146533 has 6 divisors (see below), whose sum is σ = 1368868914. Its totient is φ = 1166904336.

The previous prime is 1264146497. The next prime is 1264146557. The reversal of 1264146533 is 3356414621.

It can be written as a sum of positive squares in 3 ways, for example, as 16785409 + 1247361124 = 4097^2 + 35318^2 .

It is not a de Polignac number, because 1264146533 - 2¹⁶ = 1264080997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1264146493 and 1264146502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264140533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3739910 + ... + 3740247.

It is an arithmetic number, because the mean of its divisors is an integer number (228144819).

Almost surely, 2^1264146533 is an apocalyptic number.

1264146533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1264146533 is a deficient number, since it is larger than the sum of its proper divisors (104722381).

1264146533 is an equidigital number, since it uses as much as digits as its factorization.

1264146533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7480183 (or 7480170 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 1264146533 is about 35554.8383908576. The cubic root of 1264146533 is about 1081.2658149179.

The spelling of 1264146533 in words is "one billion, two hundred sixty-four million, one hundred forty-six thousand, five hundred thirty-three".