347121045 has 40 divisors (see below), whose sum is σ = 658862424. Its totient is φ = 174237696.

The previous prime is 347121031. The next prime is 347121091. The reversal of 347121045 is 540121743.

It can be written as a sum of positive squares in 4 ways, for example, as 47900241 + 299220804 = 6921^2 + 17298^2 .

It is not a de Polignac number, because 347121045 - 2¹³ = 347112853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18324 + ... + 32093.

Almost surely, 2^347121045 is an apocalyptic number.

It is an amenable number.

347121045 is a deficient number, since it is larger than the sum of its proper divisors (311741379).

347121045 is a wasteful number, since it uses less digits than its factorization.

347121045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50451 (or 50442 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 347121045 is about 18631.1847449377. The cubic root of 347121045 is about 702.7922788467.

Adding to 347121045 its reverse (540121743), we get a palindrome (887242788).

The spelling of 347121045 in words is "three hundred forty-seven million, one hundred twenty-one thousand, forty-five".