1306145506 has 8 divisors (see below), whose sum is σ = 2022418944. Its totient is φ = 632005860.

The previous prime is 1306145501. The next prime is 1306145521. The reversal of 1306145506 is 6055416031.

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

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (1306145501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10533370 + ... + 10533493.

It is an arithmetic number, because the mean of its divisors is an integer number (252802368).

Almost surely, 2^1306145506 is an apocalyptic number.

1306145506 is a deficient number, since it is larger than the sum of its proper divisors (716273438).

1306145506 is a wasteful number, since it uses less digits than its factorization.

1306145506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21066896.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1306145506 is about 36140.6351078672. The cubic root of 1306145506 is about 1093.1099651719.

The spelling of 1306145506 in words is "one billion, three hundred six million, one hundred forty-five thousand, five hundred six".