1325621699 has 8 divisors (see below), whose sum is σ = 1433464128. Its totient is φ = 1221097600.

The previous prime is 1325621651. The next prime is 1325621711. The reversal of 1325621699 is 9961265231.

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

It is not a de Polignac number, because 1325621699 - 2⁸ = 1325621443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1325629699) 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, 828752 + ... + 830349.

It is an arithmetic number, because the mean of its divisors is an integer number (179183016).

Almost surely, 2^1325621699 is an apocalyptic number.

1325621699 is a deficient number, since it is larger than the sum of its proper divisors (107842429).

1325621699 is a wasteful number, since it uses less digits than its factorization.

1325621699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659165.

The product of its digits is 174960, while the sum is 44.

The square root of 1325621699 is about 36409.0881374417. The cubic root of 1325621699 is about 1098.5163742385.

The spelling of 1325621699 in words is "one billion, three hundred twenty-five million, six hundred twenty-one thousand, six hundred ninety-nine".