345115551 has 16 divisors (see below), whose sum is σ = 504518400. Its totient is φ = 208105920.

The previous prime is 345115541. The next prime is 345115559. The reversal of 345115551 is 155511543.

It is not a de Polignac number, because 345115551 - 2¹³ = 345107359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345115559) 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, 19710 + ... + 32843.

It is an arithmetic number, because the mean of its divisors is an integer number (31532400).

Almost surely, 2^345115551 is an apocalyptic number.

345115551 is a deficient number, since it is larger than the sum of its proper divisors (159402849).

345115551 is a wasteful number, since it uses less digits than its factorization.

345115551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52766.

The product of its digits is 7500, while the sum is 30.

The square root of 345115551 is about 18577.2858889559. The cubic root of 345115551 is about 701.4362016461.

The spelling of 345115551 in words is "three hundred forty-five million, one hundred fifteen thousand, five hundred fifty-one".