393130955 has 16 divisors (see below), whose sum is σ = 543927744. Its totient is φ = 267187200.

The previous prime is 393130901. The next prime is 393130981. The reversal of 393130955 is 559031393.

It is not a de Polignac number, because 393130955 - 2⁶ = 393130891 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45746 + ... + 53655.

It is an arithmetic number, because the mean of its divisors is an integer number (33995484).

Almost surely, 2^393130955 is an apocalyptic number.

393130955 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

393130955 is a deficient number, since it is larger than the sum of its proper divisors (150796789).

393130955 is a wasteful number, since it uses less digits than its factorization.

393130955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99526.

The product of its (nonzero) digits is 54675, while the sum is 38.

The square root of 393130955 is about 19827.5302294562. The cubic root of 393130955 is about 732.5642944648.

The spelling of 393130955 in words is "three hundred ninety-three million, one hundred thirty thousand, nine hundred fifty-five".