391109054 has 8 divisors (see below), whose sum is σ = 670472688. Its totient is φ = 167618160.

The previous prime is 391109041. The next prime is 391109063. The reversal of 391109054 is 450901193.

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

It is a self number, because there is not a number n which added to its sum of digits gives 391109054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13968167 + ... + 13968194.

It is an arithmetic number, because the mean of its divisors is an integer number (83809086).

Almost surely, 2^391109054 is an apocalyptic number.

391109054 is a deficient number, since it is larger than the sum of its proper divisors (279363634).

391109054 is a wasteful number, since it uses less digits than its factorization.

391109054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27936370.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 391109054 is about 19776.4772899523. The cubic root of 391109054 is about 731.3062581793.

The spelling of 391109054 in words is "three hundred ninety-one million, one hundred nine thousand, fifty-four".