345803138 has 4 divisors (see below), whose sum is σ = 518704710. Its totient is φ = 172901568.

The previous prime is 345803131. The next prime is 345803177. The reversal of 345803138 is 831308543.

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., 293197129 + 52606009 = 17123^2 + 7253^2 .

It is a junction number, because it is equal to n+sod(n) for n = 345803098 and 345803107.

It is not an unprimeable number, because it can be changed into a prime (345803131) by changing a digit.

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, 86450783 + ... + 86450786.

Almost surely, 2^345803138 is an apocalyptic number.

345803138 is a deficient number, since it is larger than the sum of its proper divisors (172901572).

345803138 is a wasteful number, since it uses less digits than its factorization.

345803138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172901571.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 345803138 is about 18595.7828014849. The cubic root of 345803138 is about 701.9017254063.

The spelling of 345803138 in words is "three hundred forty-five million, eight hundred three thousand, one hundred thirty-eight".