148521653281 has 8 divisors (see below), whose sum is σ = 149453803520. Its totient is φ = 147589759152.

The previous prime is 148521653279. The next prime is 148521653321. The reversal of 148521653281 is 182356125841.

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 148521653281 - 2¹ = 148521653279 is a prime.

It is a super-2 number, since 2×148521653281² (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 (148521053281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174240 + ... + 1294558.

It is an arithmetic number, because the mean of its divisors is an integer number (18681725440).

Almost surely, 2^148521653281 is an apocalyptic number.

It is an amenable number.

148521653281 is a deficient number, since it is larger than the sum of its proper divisors (932150239).

148521653281 is a wasteful number, since it uses less digits than its factorization.

148521653281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128055.

The product of its digits is 460800, while the sum is 46.

The spelling of 148521653281 in words is "one hundred forty-eight billion, five hundred twenty-one million, six hundred fifty-three thousand, two hundred eighty-one".