1385233207 has 4 divisors (see below), whose sum is σ = 1392972120. Its totient is φ = 1377494296.

The previous prime is 1385233177. The next prime is 1385233271. The reversal of 1385233207 is 7023325831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1385233207 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 (1385233007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3869188 + ... + 3869545.

It is an arithmetic number, because the mean of its divisors is an integer number (348243030).

Almost surely, 2^1385233207 is an apocalyptic number.

1385233207 is a deficient number, since it is larger than the sum of its proper divisors (7738913).

1385233207 is an equidigital number, since it uses as much as digits as its factorization.

1385233207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7738912.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 1385233207 is about 37218.7211897454. The cubic root of 1385233207 is about 1114.7418298020.

The spelling of 1385233207 in words is "one billion, three hundred eighty-five million, two hundred thirty-three thousand, two hundred seven".