345456545 has 16 divisors (see below), whose sum is σ = 475867008. Its totient is φ = 235835520.

The previous prime is 345456523. The next prime is 345456547. The reversal of 345456545 is 545654543.

It is a happy number.

345456545 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 345456545 - 2⁸ = 345456289 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345456547) 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, 13796 + ... + 29685.

It is an arithmetic number, because the mean of its divisors is an integer number (29741688).

Almost surely, 2^345456545 is an apocalyptic number.

345456545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

345456545 is a deficient number, since it is larger than the sum of its proper divisors (130410463).

345456545 is a wasteful number, since it uses less digits than its factorization.

345456545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43720.

The product of its digits is 720000, while the sum is 41.

The square root of 345456545 is about 18586.4613361447. The cubic root of 345456545 is about 701.6671453617.

The spelling of 345456545 in words is "three hundred forty-five million, four hundred fifty-six thousand, five hundred forty-five".