1264485061 has 4 divisors (see below), whose sum is σ = 1445125792. Its totient is φ = 1083844332.

The previous prime is 1264485011. The next prime is 1264485067. The reversal of 1264485061 is 1605844621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1264485061 - 2⁷ = 1264484933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1264485061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264485067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90320355 + ... + 90320368.

It is an arithmetic number, because the mean of its divisors is an integer number (361281448).

Almost surely, 2^1264485061 is an apocalyptic number.

It is an amenable number.

1264485061 is a deficient number, since it is larger than the sum of its proper divisors (180640731).

1264485061 is an equidigital number, since it uses as much as digits as its factorization.

1264485061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180640730.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1264485061 is about 35559.5987182083. The cubic root of 1264485061 is about 1081.3623243217.

The spelling of 1264485061 in words is "one billion, two hundred sixty-four million, four hundred eighty-five thousand, sixty-one".