345178745 has 8 divisors (see below), whose sum is σ = 414335616. Its totient is φ = 276062256.

The previous prime is 345178739. The next prime is 345178751. The reversal of 345178745 is 547871543.

It is an interprime number because it is at equal distance from previous prime (345178739) and next prime (345178751).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345178745 - 2¹² = 345174649 is a prime.

It is a super-3 number, since 3×345178745³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 345178696 and 345178705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13904 + ... + 29726.

It is an arithmetic number, because the mean of its divisors is an integer number (51791952).

Almost surely, 2^345178745 is an apocalyptic number.

It is an amenable number.

345178745 is a deficient number, since it is larger than the sum of its proper divisors (69156871).

345178745 is a wasteful number, since it uses less digits than its factorization.

345178745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20191.

The product of its digits is 470400, while the sum is 44.

The square root of 345178745 is about 18578.9866515911. The cubic root of 345178745 is about 701.4790122873.

The spelling of 345178745 in words is "three hundred forty-five million, one hundred seventy-eight thousand, seven hundred forty-five".