1320153906 has 8 divisors (see below), whose sum is σ = 2640307824. Its totient is φ = 440051300.

The previous prime is 1320153899. The next prime is 1320153917. The reversal of 1320153906 is 6093510231.

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

1320153906 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110012820 + ... + 110012831.

It is an arithmetic number, because the mean of its divisors is an integer number (330038478).

Almost surely, 2^1320153906 is an apocalyptic number.

1320153906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1320153906 is a wasteful number, since it uses less digits than its factorization.

1320153906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220025656.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 1320153906 is about 36333.9222490499. The cubic root of 1320153906 is about 1097.0039423972.

The spelling of 1320153906 in words is "one billion, three hundred twenty million, one hundred fifty-three thousand, nine hundred six".