148251321 has 12 divisors (see below), whose sum is σ = 216852480. Its totient is φ = 97582680.

The previous prime is 148251317. The next prime is 148251349. The reversal of 148251321 is 123152841.

148251321 is a `hidden beast` number, since 148 + 2 + 513 + 2 + 1 = 666.

It is not a de Polignac number, because 148251321 - 2² = 148251317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148251421) 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 11 ways as a sum of consecutive naturals, for example, 103545 + ... + 104966.

It is an arithmetic number, because the mean of its divisors is an integer number (18071040).

Almost surely, 2^148251321 is an apocalyptic number.

It is an amenable number.

148251321 is a deficient number, since it is larger than the sum of its proper divisors (68601159).

148251321 is a wasteful number, since it uses less digits than its factorization.

148251321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208596 (or 208593 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 148251321 is about 12175.8499087333. The cubic root of 148251321 is about 529.2564880064.

The spelling of 148251321 in words is "one hundred forty-eight million, two hundred fifty-one thousand, three hundred twenty-one".