390133 has 8 divisors (see below), whose sum is σ = 421848. Its totient is φ = 359424.

The previous prime is 390119. The next prime is 390151. The reversal of 390133 is 331093.

It is a happy number.

390133 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 4 ways, for example, as 68644 + 321489 = 262^2 + 567^2 .

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 390133 - 2⁵ = 390101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 390133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390113) 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, 685 + ... + 1117.

It is an arithmetic number, because the mean of its divisors is an integer number (52731).

2³⁹⁰¹³³ is an apocalyptic number.

It is an amenable number.

390133 is a deficient number, since it is larger than the sum of its proper divisors (31715).

390133 is a wasteful number, since it uses less digits than its factorization.

390133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503.

The product of its (nonzero) digits is 243, while the sum is 19.

The square root of 390133 is about 624.6062759851. The cubic root of 390133 is about 73.0697400710.

The spelling of 390133 in words is "three hundred ninety thousand, one hundred thirty-three".