1331132479 has 2 divisors, whose sum is σ = 1331132480. Its totient is φ = 1331132478.

The previous prime is 1331132477. The next prime is 1331132501. The reversal of 1331132479 is 9742311331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1331132479 - 2¹ = 1331132477 is a prime.

Together with 1331132477, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331132477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665566239 + 665566240.

It is an arithmetic number, because the mean of its divisors is an integer number (665566240).

Almost surely, 2^1331132479 is an apocalyptic number.

1331132479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331132479 is an equidigital number, since it uses as much as digits as its factorization.

1331132479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 34.

The square root of 1331132479 is about 36484.6882815243. The cubic root of 1331132479 is about 1100.0364943815.

The spelling of 1331132479 in words is "one billion, three hundred thirty-one million, one hundred thirty-two thousand, four hundred seventy-nine".