1306072 has 8 divisors (see below), whose sum is σ = 2448900. Its totient is φ = 653032.

The previous prime is 1306069. The next prime is 1306087. The reversal of 1306072 is 2706031.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81622 + ... + 81637.

2^1306072 is an apocalyptic number.

It is an amenable number.

1306072 is a deficient number, since it is larger than the sum of its proper divisors (1142828).

1306072 is a wasteful number, since it uses less digits than its factorization.

1306072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163265 (or 163261 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 1306072 is about 1142.8350712154. The cubic root of 1306072 is about 109.3089459124.

The spelling of 1306072 in words is "one million, three hundred six thousand, seventy-two".