1385501 has 8 divisors (see below), whose sum is σ = 1502424. Its totient is φ = 1270080.

The previous prime is 1385479. The next prime is 1385507. The reversal of 1385501 is 1055831.

1385501 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 4 ways, for example, as 280900 + 1104601 = 530^2 + 1051^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1385501 - 2⁶ = 1385437 is a prime.

It is a super-2 number, since 2×1385501² = 3839226042002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2291 + ... + 2831.

It is an arithmetic number, because the mean of its divisors is an integer number (187803).

2^1385501 is an apocalyptic number.

It is an amenable number.

1385501 is a deficient number, since it is larger than the sum of its proper divisors (116923).

1385501 is a wasteful number, since it uses less digits than its factorization.

1385501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1385501 is about 1177.0730648520. The cubic root of 1385501 is about 111.4813659061.

The spelling of 1385501 in words is "one million, three hundred eighty-five thousand, five hundred one".