148263921 has 48 divisors (see below), whose sum is σ = 245241360. Its totient is φ = 85639680.

The previous prime is 148263901. The next prime is 148263937. The reversal of 148263921 is 129362841.

148263921 is a `hidden beast` number, since 14 + 8 + 2 + 639 + 2 + 1 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 12215025 + 136048896 = 3495^2 + 11664^2 .

It is not a de Polignac number, because 148263921 - 2¹¹ = 148261873 is a prime.

It is a house number.

It is not an unprimeable number, because it can be changed into a prime (148263901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124951 + ... + 126131.

It is an arithmetic number, because the mean of its divisors is an integer number (5109195).

Almost surely, 2^148263921 is an apocalyptic number.

It is an amenable number.

148263921 is a deficient number, since it is larger than the sum of its proper divisors (96977439).

148263921 is a wasteful number, since it uses less digits than its factorization.

148263921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266 (or 1263 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 148263921 is about 12176.3673154188. The cubic root of 148263921 is about 529.2714815610.

The spelling of 148263921 in words is "one hundred forty-eight million, two hundred sixty-three thousand, nine hundred twenty-one".