1307145 has 32 divisors (see below), whose sum is σ = 2442240. Its totient is φ = 584640.

The previous prime is 1307123. The next prime is 1307153. The reversal of 1307145 is 5417031.

It is not a de Polignac number, because 1307145 - 2⁶ = 1307081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a zygodrome in base 6.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6090 + ... + 6300.

It is an arithmetic number, because the mean of its divisors is an integer number (76320).

2^1307145 is an apocalyptic number.

1307145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1307145 is a deficient number, since it is larger than the sum of its proper divisors (1135095).

1307145 is a wasteful number, since it uses less digits than its factorization.

1307145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1307145 is about 1143.3044214032. The cubic root of 1307145 is about 109.3388718772.

The spelling of 1307145 in words is "one million, three hundred seven thousand, one hundred forty-five".