1385951 has 8 divisors (see below), whose sum is σ = 1597440. Its totient is φ = 1177848.

The previous prime is 1385947. The next prime is 1385953. The reversal of 1385951 is 1595831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1385951 - 2² = 1385947 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 (1385953) 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 7 ways as a sum of consecutive naturals, for example, 110 + ... + 1668.

It is an arithmetic number, because the mean of its divisors is an integer number (199680).

2^1385951 is an apocalyptic number.

1385951 is a deficient number, since it is larger than the sum of its proper divisors (211489).

1385951 is a wasteful number, since it uses less digits than its factorization.

1385951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693.

The product of its digits is 5400, while the sum is 32.

The square root of 1385951 is about 1177.2642014433. The cubic root of 1385951 is about 111.4934340279.

The spelling of 1385951 in words is "one million, three hundred eighty-five thousand, nine hundred fifty-one".