390133109 has 8 divisors (see below), whose sum is σ = 412084992. Its totient is φ = 368766720.

The previous prime is 390133057. The next prime is 390133123. The reversal of 390133109 is 901331093.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390133109 is a prime.

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 (390133169) 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, 145004 + ... + 147669.

It is an arithmetic number, because the mean of its divisors is an integer number (51510624).

Almost surely, 2^390133109 is an apocalyptic number.

It is an amenable number.

390133109 is a deficient number, since it is larger than the sum of its proper divisors (21951883).

390133109 is a wasteful number, since it uses less digits than its factorization.

390133109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292747.

The product of its (nonzero) digits is 2187, while the sum is 29.

The square root of 390133109 is about 19751.7874887312. The cubic root of 390133109 is about 730.6974687605.

The spelling of 390133109 in words is "three hundred ninety million, one hundred thirty-three thousand, one hundred nine".