349185155 has 16 divisors (see below), whose sum is σ = 467748864. Its totient is φ = 248045280.

The previous prime is 349185139. The next prime is 349185157. The reversal of 349185155 is 551581943.

It is not a de Polignac number, because 349185155 - 2⁴ = 349185139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (349185157) 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, 71459 + ... + 76188.

It is an arithmetic number, because the mean of its divisors is an integer number (29234304).

Almost surely, 2^349185155 is an apocalyptic number.

349185155 is a deficient number, since it is larger than the sum of its proper divisors (118563709).

349185155 is a wasteful number, since it uses less digits than its factorization.

349185155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147706.

The product of its digits is 108000, while the sum is 41.

The square root of 349185155 is about 18686.4965951352. The cubic root of 349185155 is about 704.1825476541.

The spelling of 349185155 in words is "three hundred forty-nine million, one hundred eighty-five thousand, one hundred fifty-five".