148621523 has 2 divisors, whose sum is σ = 148621524. Its totient is φ = 148621522.

The previous prime is 148621519. The next prime is 148621651. The reversal of 148621523 is 325126841.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 148621523 - 2² = 148621519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148621523.

It is not a weakly prime, because it can be changed into another prime (148651523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74310761 + 74310762.

It is an arithmetic number, because the mean of its divisors is an integer number (74310762).

Almost surely, 2^148621523 is an apocalyptic number.

148621523 is a deficient number, since it is larger than the sum of its proper divisors (1).

148621523 is an equidigital number, since it uses as much as digits as its factorization.

148621523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 32.

The square root of 148621523 is about 12191.0427363700. The cubic root of 148621523 is about 529.6966615941.

The spelling of 148621523 in words is "one hundred forty-eight million, six hundred twenty-one thousand, five hundred twenty-three".