345749545 has 4 divisors (see below), whose sum is σ = 414899460. Its totient is φ = 276599632.

The previous prime is 345749527. The next prime is 345749549. The reversal of 345749545 is 545947543.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 178409449 + 167340096 = 13357^2 + 12936^2 .

It is a cyclic number.

It is not a de Polignac number, because 345749545 - 2²⁵ = 312195113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345749495 and 345749504.

It is not an unprimeable number, because it can be changed into a prime (345749549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34574950 + ... + 34574959.

It is an arithmetic number, because the mean of its divisors is an integer number (103724865).

Almost surely, 2^345749545 is an apocalyptic number.

It is an amenable number.

345749545 is a deficient number, since it is larger than the sum of its proper divisors (69149915).

345749545 is an equidigital number, since it uses as much as digits as its factorization.

345749545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69149914.

The product of its digits is 1512000, while the sum is 46.

The square root of 345749545 is about 18594.3417468863. The cubic root of 345749545 is about 701.8654629991.

The spelling of 345749545 in words is "three hundred forty-five million, seven hundred forty-nine thousand, five hundred forty-five".