148321523 has 4 divisors (see below), whose sum is σ = 169510320. Its totient is φ = 127132728.

The previous prime is 148321517. The next prime is 148321529. The reversal of 148321523 is 325123841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325123841 = 7 ⋅46446263.

It is an interprime number because it is at equal distance from previous prime (148321517) and next prime (148321529).

It is a cyclic number.

It is not a de Polignac number, because 148321523 - 2¹⁰ = 148320499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148321529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10594388 + ... + 10594401.

It is an arithmetic number, because the mean of its divisors is an integer number (42377580).

Almost surely, 2^148321523 is an apocalyptic number.

148321523 is a deficient number, since it is larger than the sum of its proper divisors (21188797).

148321523 is an equidigital number, since it uses as much as digits as its factorization.

148321523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21188796.

The product of its digits is 5760, while the sum is 29.

The square root of 148321523 is about 12178.7324053039. The cubic root of 148321523 is about 529.3400150886.

The spelling of 148321523 in words is "one hundred forty-eight million, three hundred twenty-one thousand, five hundred twenty-three".