1307445 has 16 divisors (see below), whose sum is σ = 2115072. Its totient is φ = 689600.

The previous prime is 1307441. The next prime is 1307461. The reversal of 1307445 is 5447031.

It is not a de Polignac number, because 1307445 - 2² = 1307441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307441) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 1084 + ... + 1946.

It is an arithmetic number, because the mean of its divisors is an integer number (132192).

2^1307445 is an apocalyptic number.

1307445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1307445 is a deficient number, since it is larger than the sum of its proper divisors (807627).

1307445 is a wasteful number, since it uses less digits than its factorization.

1307445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 1307445 is about 1143.4356125292. The cubic root of 1307445 is about 109.3472359461.

The spelling of 1307445 in words is "one million, three hundred seven thousand, four hundred forty-five".