30195349 has 4 divisors (see below), whose sum is σ = 31971564. Its totient is φ = 28419136.

The previous prime is 30195307. The next prime is 30195353. The reversal of 30195349 is 94359103.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23590449 + 6604900 = 4857^2 + 2570^2 .

It is a cyclic number.

It is not a de Polignac number, because 30195349 - 2¹¹ = 30193301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30195149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888082 + ... + 888115.

It is an arithmetic number, because the mean of its divisors is an integer number (7992891).

Almost surely, 2^30195349 is an apocalyptic number.

It is an amenable number.

30195349 is a deficient number, since it is larger than the sum of its proper divisors (1776215).

30195349 is a wasteful number, since it uses less digits than its factorization.

30195349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776214.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 30195349 is about 5495.0294812676. The cubic root of 30195349 is about 311.3962305946.

The spelling of 30195349 in words is "thirty million, one hundred ninety-five thousand, three hundred forty-nine".