1325669747 has 4 divisors (see below), whose sum is σ = 1356499320. Its totient is φ = 1294840176.

The previous prime is 1325669711. The next prime is 1325669749. The reversal of 1325669747 is 7479665231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1325669747 - 2¹⁶ = 1325604211 is a prime.

It is a super-2 number, since 2×1325669747² = 3514800556222088018, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1325669695 and 1325669704.

It is not an unprimeable number, because it can be changed into a prime (1325669749) 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, 15414722 + ... + 15414807.

It is an arithmetic number, because the mean of its divisors is an integer number (339124830).

Almost surely, 2^1325669747 is an apocalyptic number.

1325669747 is a deficient number, since it is larger than the sum of its proper divisors (30829573).

1325669747 is an equidigital number, since it uses as much as digits as its factorization.

1325669747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30829572.

The product of its digits is 1905120, while the sum is 50.

The square root of 1325669747 is about 36409.7479667190. The cubic root of 1325669747 is about 1098.5296462193.

The spelling of 1325669747 in words is "one billion, three hundred twenty-five million, six hundred sixty-nine thousand, seven hundred forty-seven".