148263121 has 2 divisors, whose sum is σ = 148263122. Its totient is φ = 148263120.

The previous prime is 148263113. The next prime is 148263131. The reversal of 148263121 is 121362841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103225600 + 45037521 = 10160^2 + 6711^2 .

It is a cyclic number.

It is not a de Polignac number, because 148263121 - 2³ = 148263113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148263121.

It is not a weakly prime, because it can be changed into another prime (148263131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74131560 + 74131561.

It is an arithmetic number, because the mean of its divisors is an integer number (74131561).

Almost surely, 2^148263121 is an apocalyptic number.

It is an amenable number.

148263121 is a deficient number, since it is larger than the sum of its proper divisors (1).

148263121 is an equidigital number, since it uses as much as digits as its factorization.

148263121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 28.

The square root of 148263121 is about 12176.3344648544. The cubic root of 148263121 is about 529.2705296145.

The spelling of 148263121 in words is "one hundred forty-eight million, two hundred sixty-three thousand, one hundred twenty-one".