345520045 has 16 divisors (see below), whose sum is σ = 447834240. Its totient is φ = 254401344.

The previous prime is 345520027. The next prime is 345520069. The reversal of 345520045 is 540025543.

It is a cyclic number.

It is not a de Polignac number, because 345520045 - 2¹³ = 345511853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345519995 and 345520022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14896 + ... + 30214.

It is an arithmetic number, because the mean of its divisors is an integer number (27989640).

Almost surely, 2^345520045 is an apocalyptic number.

It is an amenable number.

345520045 is a deficient number, since it is larger than the sum of its proper divisors (102314195).

345520045 is a wasteful number, since it uses less digits than its factorization.

345520045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15684.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 345520045 is about 18588.1694902968. The cubic root of 345520045 is about 701.7101349790.

Adding to 345520045 its reverse (540025543), we get a palindrome (885545588).

The spelling of 345520045 in words is "three hundred forty-five million, five hundred twenty thousand, forty-five".