345070145 has 32 divisors (see below), whose sum is σ = 500484096. Its totient is φ = 223372800.

The previous prime is 345070087. The next prime is 345070151. The reversal of 345070145 is 541070543.

It is not a de Polignac number, because 345070145 - 2¹⁰ = 345069121 is a prime.

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

It is a Curzon number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 40607 + ... + 48363.

It is an arithmetic number, because the mean of its divisors is an integer number (15640128).

Almost surely, 2^345070145 is an apocalyptic number.

345070145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

345070145 is a deficient number, since it is larger than the sum of its proper divisors (155413951).

345070145 is a wasteful number, since it uses less digits than its factorization.

345070145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7841.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 345070145 is about 18576.0637649638. The cubic root of 345070145 is about 701.4054382211.

The spelling of 345070145 in words is "three hundred forty-five million, seventy thousand, one hundred forty-five".