345164391 has 48 divisors (see below), whose sum is σ = 588500640. Its totient is φ = 192188160.

The previous prime is 345164377. The next prime is 345164419. The reversal of 345164391 is 193461543.

345164391 is a `hidden beast` number, since 3 + 4 + 5 + 1 + 643 + 9 + 1 = 666.

It is not a de Polignac number, because 345164391 - 2⁶ = 345164327 is a prime.

Its product of digits (38880) is a multiple of the sum of its prime factors (1296).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345164321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 345705 + ... + 346701.

It is an arithmetic number, because the mean of its divisors is an integer number (12260430).

Almost surely, 2^345164391 is an apocalyptic number.

345164391 is a deficient number, since it is larger than the sum of its proper divisors (243336249).

345164391 is a wasteful number, since it uses less digits than its factorization.

345164391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296 (or 1293 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 345164391 is about 18578.6003509414. The cubic root of 345164391 is about 701.4692886591.

The spelling of 345164391 in words is "three hundred forty-five million, one hundred sixty-four thousand, three hundred ninety-one".