345519249 has 4 divisors (see below), whose sum is σ = 460692336. Its totient is φ = 230346164.

The previous prime is 345519241. The next prime is 345519263. The reversal of 345519249 is 942915543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 942915543 = 3 ⋅314305181.

It is a cyclic number.

It is not a de Polignac number, because 345519249 - 2³ = 345519241 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 345519249.

It is not an unprimeable number, because it can be changed into a prime (345519241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57586539 + ... + 57586544.

It is an arithmetic number, because the mean of its divisors is an integer number (115173084).

Almost surely, 2^345519249 is an apocalyptic number.

It is an amenable number.

345519249 is a deficient number, since it is larger than the sum of its proper divisors (115173087).

345519249 is a wasteful number, since it uses less digits than its factorization.

345519249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115173086.

The product of its digits is 194400, while the sum is 42.

The square root of 345519249 is about 18588.1480788162. The cubic root of 345519249 is about 701.7095961181.

The spelling of 345519249 in words is "three hundred forty-five million, five hundred nineteen thousand, two hundred forty-nine".