191946045 has 8 divisors (see below), whose sum is σ = 307113696. Its totient is φ = 102371216.

The previous prime is 191946043. The next prime is 191946059. The reversal of 191946045 is 540649191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 191946045 - 2¹ = 191946043 is a prime.

It is a super-2 number, since 2×191946045² = 73686568382284050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 191945994 and 191946012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191946043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6398187 + ... + 6398216.

It is an arithmetic number, because the mean of its divisors is an integer number (38389212).

Almost surely, 2^191946045 is an apocalyptic number.

191946045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

191946045 is a deficient number, since it is larger than the sum of its proper divisors (115167651).

191946045 is a wasteful number, since it uses less digits than its factorization.

191946045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12796411.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 191946045 is about 13854.4593903912. The cubic root of 191946045 is about 576.8457837716.

The spelling of 191946045 in words is "one hundred ninety-one million, nine hundred forty-six thousand, forty-five".