148193447977 has 2 divisors, whose sum is σ = 148193447978. Its totient is φ = 148193447976.

The previous prime is 148193447939. The next prime is 148193447989. The reversal of 148193447977 is 779744391841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121162471056 + 27030976921 = 348084^2 + 164411^2 .

It is a cyclic number.

It is not a de Polignac number, because 148193447977 - 2¹⁹ = 148192923689 is a prime.

It is a super-2 number, since 2×148193447977² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (148193447377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74096723988 + 74096723989.

It is an arithmetic number, because the mean of its divisors is an integer number (74096723989).

Almost surely, 2^148193447977 is an apocalyptic number.

It is an amenable number.

148193447977 is a deficient number, since it is larger than the sum of its proper divisors (1).

148193447977 is an equidigital number, since it uses as much as digits as its factorization.

148193447977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42674688, while the sum is 64.

The spelling of 148193447977 in words is "one hundred forty-eight billion, one hundred ninety-three million, four hundred forty-seven thousand, nine hundred seventy-seven".