191345104 has 20 divisors (see below), whose sum is σ = 374199264. Its totient is φ = 94777568.

The previous prime is 191345101. The next prime is 191345107. The reversal of 191345104 is 401543191.

It is an interprime number because it is at equal distance from previous prime (191345101) and next prime (191345107).

It is a super-2 number, since 2×191345104² = 73225897649541632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191345101) 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, 54172 + ... + 57595.

Almost surely, 2^191345104 is an apocalyptic number.

It is an amenable number.

191345104 is a deficient number, since it is larger than the sum of its proper divisors (182854160).

191345104 is a wasteful number, since it uses less digits than its factorization.

191345104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111882 (or 111876 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 191345104 is about 13832.7547509525. The cubic root of 191345104 is about 576.2431618652.

Adding to 191345104 its reverse (401543191), we get a palindrome (592888295).

The spelling of 191345104 in words is "one hundred ninety-one million, three hundred forty-five thousand, one hundred four".