1247401469 has 8 divisors (see below), whose sum is σ = 1321230528. Its totient is φ = 1173622720.

The previous prime is 1247401459. The next prime is 1247401489. The reversal of 1247401469 is 9641047421.

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

It is a cyclic number.

It is not a de Polignac number, because 1247401469 - 2⁴ = 1247401453 is a prime.

It is a super-2 number, since 2×1247401469² = 3112020849726715922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247401459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46424 + ... + 68190.

It is an arithmetic number, because the mean of its divisors is an integer number (165153816).

Almost surely, 2^1247401469 is an apocalyptic number.

It is an amenable number.

1247401469 is a deficient number, since it is larger than the sum of its proper divisors (73829059).

1247401469 is a wasteful number, since it uses less digits than its factorization.

1247401469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25155.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1247401469 is about 35318.5711630581. The cubic root of 1247401469 is about 1076.4703784618.

The spelling of 1247401469 in words is "one billion, two hundred forty-seven million, four hundred one thousand, four hundred sixty-nine".