345901391 has 8 divisors (see below), whose sum is σ = 380319744. Its totient is φ = 311978520.

The previous prime is 345901349. The next prime is 345901399. The reversal of 345901391 is 193109543.

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 345901391 - 2¹⁰ = 345900367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345901399) 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, 122405 + ... + 125198.

It is an arithmetic number, because the mean of its divisors is an integer number (47539968).

Almost surely, 2^345901391 is an apocalyptic number.

345901391 is a deficient number, since it is larger than the sum of its proper divisors (34418353).

345901391 is a wasteful number, since it uses less digits than its factorization.

345901391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247741.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 345901391 is about 18598.4244225149. The cubic root of 345901391 is about 701.9681961928.

The spelling of 345901391 in words is "three hundred forty-five million, nine hundred one thousand, three hundred ninety-one".