148347455281 has 3 divisors (see below), whose sum is σ = 148347840441. Its totient is φ = 148347070122.

The previous prime is 148347455261. The next prime is 148347455357. The reversal of 148347455281 is 182554743841.

The square root of 148347455281 is 385159.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 182554743841 = 100801 ⋅1811041.

It is a de Polignac number, because none of the positive numbers 2^k-148347455281 is a prime.

It is a super-2 number, since 2×148347455281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148347455251) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 192580 + ... + 577738.

It is an arithmetic number, because the mean of its divisors is an integer number (49449280147).

Almost surely, 2^148347455281 is an apocalyptic number.

148347455281 is the 385159-th square number.

148347455281 is the 192580-th centered octagonal number.

It is an amenable number.

148347455281 is a deficient number, since it is larger than the sum of its proper divisors (385160).

148347455281 is an frugal number, since it uses more digits than its factorization.

148347455281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770318 (or 385159 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 52.

The spelling of 148347455281 in words is "one hundred forty-eight billion, three hundred forty-seven million, four hundred fifty-five thousand, two hundred eighty-one".