345555554 has 4 divisors (see below), whose sum is σ = 518333334. Its totient is φ = 172777776.

The previous prime is 345555547. The next prime is 345555569. The reversal of 345555554 is 455555543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 199798225 + 145757329 = 14135^2 + 12073^2 .

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 as a sum of consecutive naturals, namely, 86388887 + ... + 86388890.

Almost surely, 2^345555554 is an apocalyptic number.

345555554 is a deficient number, since it is larger than the sum of its proper divisors (172777780).

345555554 is a wasteful number, since it uses less digits than its factorization.

345555554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172777779.

The product of its digits is 750000, while the sum is 41.

The square root of 345555554 is about 18589.1246162911. The cubic root of 345555554 is about 701.7341723415.

The spelling of 345555554 in words is "three hundred forty-five million, five hundred fifty-five thousand, five hundred fifty-four".