1306946 has 4 divisors (see below), whose sum is σ = 1960422. Its totient is φ = 653472.

The previous prime is 1306933. The next prime is 1306961. The reversal of 1306946 is 6496031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6496031 = 113 ⋅57487.

It can be written as a sum of positive squares in only one way, i.e., 1155625 + 151321 = 1075^2 + 389^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326735 + ... + 326738.

2^1306946 is an apocalyptic number.

1306946 is a deficient number, since it is larger than the sum of its proper divisors (653476).

1306946 is an equidigital number, since it uses as much as digits as its factorization.

1306946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653475.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1306946 is about 1143.2173896508. The cubic root of 1306946 is about 109.3333230055. Note that the first 4 decimals are identical.

The spelling of 1306946 in words is "one million, three hundred six thousand, nine hundred forty-six".