148859821298197 has 2 divisors, whose sum is σ = 148859821298198. Its totient is φ = 148859821298196.

The previous prime is 148859821298179. The next prime is 148859821298213. The reversal of 148859821298197 is 791892128958841.

Together with previous prime (148859821298179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133591663610596 + 15268157687601 = 11558186^2 + 3907449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148859821298197 is a prime.

It is a super-2 number, since 2×148859821298197² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 148859821298197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148859821298897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74429910649098 + 74429910649099.

It is an arithmetic number, because the mean of its divisors is an integer number (74429910649099).

Almost surely, 2^{148859821298197} is an apocalyptic number.

It is an amenable number.

148859821298197 is a deficient number, since it is larger than the sum of its proper divisors (1).

148859821298197 is an equidigital number, since it uses as much as digits as its factorization.

148859821298197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1672151040, while the sum is 82.

The spelling of 148859821298197 in words is "one hundred forty-eight trillion, eight hundred fifty-nine billion, eight hundred twenty-one million, two hundred ninety-eight thousand, one hundred ninety-seven".