1321077467 has 4 divisors (see below), whose sum is σ = 1390607880. Its totient is φ = 1251547056.

The previous prime is 1321077451. The next prime is 1321077479. The reversal of 1321077467 is 7647701231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7647701231 = 43 ⋅177853517.

It is a cyclic number.

It is not a de Polignac number, because 1321077467 - 2⁴ = 1321077451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321077467.

It is not an unprimeable number, because it can be changed into a prime (1321077167) 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, 34765178 + ... + 34765215.

It is an arithmetic number, because the mean of its divisors is an integer number (347651970).

Almost surely, 2^1321077467 is an apocalyptic number.

1321077467 is a deficient number, since it is larger than the sum of its proper divisors (69530413).

1321077467 is an equidigital number, since it uses as much as digits as its factorization.

1321077467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69530412.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 1321077467 is about 36346.6293760508. The cubic root of 1321077467 is about 1097.2596989125.

Adding to 1321077467 its reverse (7647701231), we get a palindrome (8968778698).

The spelling of 1321077467 in words is "one billion, three hundred twenty-one million, seventy-seven thousand, four hundred sixty-seven".