1385207 has 4 divisors (see below), whose sum is σ = 1395456. Its totient is φ = 1374960.

The previous prime is 1385203. The next prime is 1385213. The reversal of 1385207 is 7025831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1385207 - 2² = 1385203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4919 + ... + 5192.

It is an arithmetic number, because the mean of its divisors is an integer number (348864).

2^1385207 is an apocalyptic number.

1385207 is a deficient number, since it is larger than the sum of its proper divisors (10249).

1385207 is a wasteful number, since it uses less digits than its factorization.

1385207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10248.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1385207 is about 1176.9481721809. The cubic root of 1385207 is about 111.4734799885.

The spelling of 1385207 in words is "one million, three hundred eighty-five thousand, two hundred seven".