1320147 has 6 divisors (see below), whose sum is σ = 1906892. Its totient is φ = 880092.

The previous prime is 1320127. The next prime is 1320149. The reversal of 1320147 is 7410231.

It is not a de Polignac number, because 1320147 - 2⁷ = 1320019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73333 + ... + 73350.

2^1320147 is an apocalyptic number.

1320147 is a deficient number, since it is larger than the sum of its proper divisors (586745).

1320147 is a wasteful number, since it uses less digits than its factorization.

1320147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146689 (or 146686 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1320147 is about 1148.9765010652. The cubic root of 1320147 is about 109.7002029509.

Adding to 1320147 its reverse (7410231), we get a palindrome (8730378).

The spelling of 1320147 in words is "one million, three hundred twenty thousand, one hundred forty-seven".