1306422173 has 32 divisors (see below), whose sum is σ = 1576185600. Its totient is φ = 1081684800.

The previous prime is 1306422167. The next prime is 1306422179. The reversal of 1306422173 is 3712246031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1306422167) and next prime (1306422179).

It is a de Polignac number, because none of the positive numbers 2^k-1306422173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306422179) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1489211 + ... + 1490087.

It is an arithmetic number, because the mean of its divisors is an integer number (49255800).

Almost surely, 2^1306422173 is an apocalyptic number.

It is an amenable number.

1306422173 is a deficient number, since it is larger than the sum of its proper divisors (269763427).

1306422173 is an equidigital number, since it uses as much as digits as its factorization.

1306422173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1306422173 is about 36144.4625496078. The cubic root of 1306422173 is about 1093.1871403673.

The spelling of 1306422173 in words is "one billion, three hundred six million, four hundred twenty-two thousand, one hundred seventy-three".