1325278767 has 8 divisors (see below), whose sum is σ = 1777620096. Its totient is φ = 878228312.

The previous prime is 1325278739. The next prime is 1325278769. The reversal of 1325278767 is 7678725231.

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 1325278767 - 2¹⁴ = 1325262383 is a prime.

It is a super-2 number, since 2×1325278767² = 3512727620522080578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325278769) 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, 1322133 + ... + 1323134.

It is an arithmetic number, because the mean of its divisors is an integer number (222202512).

Almost surely, 2^1325278767 is an apocalyptic number.

1325278767 is a deficient number, since it is larger than the sum of its proper divisors (452341329).

1325278767 is a wasteful number, since it uses less digits than its factorization.

1325278767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645437.

The product of its digits is 987840, while the sum is 48.

The square root of 1325278767 is about 36404.3784042524. The cubic root of 1325278767 is about 1098.4216390897.

The spelling of 1325278767 in words is "one billion, three hundred twenty-five million, two hundred seventy-eight thousand, seven hundred sixty-seven".