345117745 has 16 divisors (see below), whose sum is σ = 473679360. Its totient is φ = 236464704.

The previous prime is 345117743. The next prime is 345117749. The reversal of 345117745 is 547711543.

It is not a de Polignac number, because 345117745 - 2¹ = 345117743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345117743) 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, 52291 + ... + 58519.

It is an arithmetic number, because the mean of its divisors is an integer number (29604960).

Almost surely, 2^345117745 is an apocalyptic number.

345117745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

345117745 is a deficient number, since it is larger than the sum of its proper divisors (128561615).

345117745 is a wasteful number, since it uses less digits than its factorization.

345117745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7824.

The product of its digits is 58800, while the sum is 37.

The square root of 345117745 is about 18577.3449394686. The cubic root of 345117745 is about 701.4376880543.

The spelling of 345117745 in words is "three hundred forty-five million, one hundred seventeen thousand, seven hundred forty-five".