1263000461 has 4 divisors (see below), whose sum is σ = 1267695900. Its totient is φ = 1258305024.

The previous prime is 1263000407. The next prime is 1263000463. The reversal of 1263000461 is 1640003621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 513883561 + 749116900 = 22669^2 + 27370^2 .

It is a cyclic number.

It is not a de Polignac number, because 1263000461 - 2¹⁸ = 1262738317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263000463) 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, 2347316 + ... + 2347853.

It is an arithmetic number, because the mean of its divisors is an integer number (316923975).

Almost surely, 2^1263000461 is an apocalyptic number.

It is an amenable number.

1263000461 is a deficient number, since it is larger than the sum of its proper divisors (4695439).

1263000461 is an equidigital number, since it uses as much as digits as its factorization.

1263000461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4695438.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1263000461 is about 35538.7177737183. The cubic root of 1263000461 is about 1080.9389585187.

The spelling of 1263000461 in words is "one billion, two hundred sixty-three million, four hundred sixty-one", and thus it is an aban number.