1325641447 has 8 divisors (see below), whose sum is σ = 1451018240. Its totient is φ = 1203608160.

The previous prime is 1325641411. The next prime is 1325641483. The reversal of 1325641447 is 7441465231.

It is an interprime number because it is at equal distance from previous prime (1325641411) and next prime (1325641483).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1325641447 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 (1325641847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835047 + ... + 836632.

It is an arithmetic number, because the mean of its divisors is an integer number (181377280).

Almost surely, 2^1325641447 is an apocalyptic number.

1325641447 is a deficient number, since it is larger than the sum of its proper divisors (125376793).

1325641447 is a wasteful number, since it uses less digits than its factorization.

1325641447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671753.

The product of its digits is 80640, while the sum is 37.

The square root of 1325641447 is about 36409.3593324574. The cubic root of 1325641447 is about 1098.5218291366.

The spelling of 1325641447 in words is "one billion, three hundred twenty-five million, six hundred forty-one thousand, four hundred forty-seven".