1327650645 has 16 divisors (see below), whose sum is σ = 2128800960. Its totient is φ = 706560384.

The previous prime is 1327650641. The next prime is 1327650677. The reversal of 1327650645 is 5460567231.

It is not a de Polignac number, because 1327650645 - 2² = 1327650641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1327650641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87760 + ... + 101769.

It is an arithmetic number, because the mean of its divisors is an integer number (133050060).

Almost surely, 2^1327650645 is an apocalyptic number.

1327650645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1327650645 is a deficient number, since it is larger than the sum of its proper divisors (801150315).

1327650645 is a wasteful number, since it uses less digits than its factorization.

1327650645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190004.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 1327650645 is about 36436.9406646606. The cubic root of 1327650645 is about 1099.0765376321.

The spelling of 1327650645 in words is "one billion, three hundred twenty-seven million, six hundred fifty thousand, six hundred forty-five".