1263749467 has 8 divisors (see below), whose sum is σ = 1354336416. Its totient is φ = 1176132672.

The previous prime is 1263749423. The next prime is 1263749477. The reversal of 1263749467 is 7649473621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1263749467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1263749467.

It is not an unprimeable number, because it can be changed into a prime (1263749407) 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, 741658 + ... + 743359.

It is an arithmetic number, because the mean of its divisors is an integer number (169292052).

Almost surely, 2^1263749467 is an apocalyptic number.

1263749467 is a deficient number, since it is larger than the sum of its proper divisors (90586949).

1263749467 is a wasteful number, since it uses less digits than its factorization.

1263749467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485077.

The product of its digits is 1524096, while the sum is 49.

The square root of 1263749467 is about 35549.2540990666. The cubic root of 1263749467 is about 1081.1525952239.

The spelling of 1263749467 in words is "one billion, two hundred sixty-three million, seven hundred forty-nine thousand, four hundred sixty-seven".