1307812 has 12 divisors (see below), whose sum is σ = 2496816. Its totient is φ = 594440.

The previous prime is 1307809. The next prime is 1307821. The reversal of 1307812 is 2187031.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14818 + ... + 14905.

It is an arithmetic number, because the mean of its divisors is an integer number (208068).

2^1307812 is an apocalyptic number.

It is an amenable number.

1307812 is a deficient number, since it is larger than the sum of its proper divisors (1189004).

1307812 is a wasteful number, since it uses less digits than its factorization.

1307812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29738 (or 29736 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1307812 is about 1143.5960825396. The cubic root of 1307812 is about 109.3574662506.

The spelling of 1307812 in words is "one million, three hundred seven thousand, eight hundred twelve".