345093291 has 16 divisors (see below), whose sum is σ = 517564320. Its totient is φ = 230060736.

The previous prime is 345093289. The next prime is 345093373. The reversal of 345093291 is 192390543.

It is a happy number.

345093291 is a `hidden beast` number, since 34 + 509 + 32 + 91 = 666.

It is not a de Polignac number, because 345093291 - 2¹ = 345093289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345093211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76710 + ... + 81083.

It is an arithmetic number, because the mean of its divisors is an integer number (32347770).

Almost surely, 2^345093291 is an apocalyptic number.

345093291 is a deficient number, since it is larger than the sum of its proper divisors (172471029).

345093291 is an frugal number, since it uses more digits than its factorization.

345093291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157814 (or 157796 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 345093291 is about 18576.6867605609. The cubic root of 345093291 is about 701.4211204117.

The spelling of 345093291 in words is "three hundred forty-five million, ninety-three thousand, two hundred ninety-one".