345112551 has 24 divisors (see below), whose sum is σ = 570196640. Its totient is φ = 197038656.

The previous prime is 345112543. The next prime is 345112583. The reversal of 345112551 is 155211543.

It is not a de Polignac number, because 345112551 - 2³ = 345112543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345112451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143265 + ... + 145653.

Almost surely, 2^345112551 is an apocalyptic number.

345112551 is a deficient number, since it is larger than the sum of its proper divisors (225084089).

345112551 is a wasteful number, since it uses less digits than its factorization.

345112551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4695 (or 4692 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 345112551 is about 18577.2051450158. The cubic root of 345112551 is about 701.4341691725.

It can be divided in two parts, 345 and 112551, that added together give a square (112896 = 336²).

The spelling of 345112551 in words is "three hundred forty-five million, one hundred twelve thousand, five hundred fifty-one".