191048597 has 2 divisors, whose sum is σ = 191048598. Its totient is φ = 191048596.

The previous prime is 191048593. The next prime is 191048621. The reversal of 191048597 is 795840191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186759556 + 4289041 = 13666^2 + 2071^2 .

It is a cyclic number.

It is not a de Polignac number, because 191048597 - 2² = 191048593 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191048593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95524298 + 95524299.

It is an arithmetic number, because the mean of its divisors is an integer number (95524299).

Almost surely, 2^191048597 is an apocalyptic number.

It is an amenable number.

191048597 is a deficient number, since it is larger than the sum of its proper divisors (1).

191048597 is an equidigital number, since it uses as much as digits as its factorization.

191048597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 191048597 is about 13822.0330270189. The cubic root of 191048597 is about 575.9453605658.

The spelling of 191048597 in words is "one hundred ninety-one million, forty-eight thousand, five hundred ninety-seven".