1291714477 has 4 divisors (see below), whose sum is σ = 1347876000. Its totient is φ = 1235552956.

The previous prime is 1291714469. The next prime is 1291714481. The reversal of 1291714477 is 7744171921.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7744171921 = 23 ⋅336703127.

It is a cyclic number.

It is not a de Polignac number, because 1291714477 - 2³ = 1291714469 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 (1291714447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28080727 + ... + 28080772.

It is an arithmetic number, because the mean of its divisors is an integer number (336969000).

Almost surely, 2^1291714477 is an apocalyptic number.

It is an amenable number.

1291714477 is a deficient number, since it is larger than the sum of its proper divisors (56161523).

1291714477 is an equidigital number, since it uses as much as digits as its factorization.

1291714477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56161522.

The product of its digits is 98784, while the sum is 43.

The square root of 1291714477 is about 35940.4295605937. The cubic root of 1291714477 is about 1089.0692829505.

The spelling of 1291714477 in words is "one billion, two hundred ninety-one million, seven hundred fourteen thousand, four hundred seventy-seven".