12148501 has 4 divisors (see below), whose sum is σ = 12377772. Its totient is φ = 11919232.

The previous prime is 12148483. The next prime is 12148511. The reversal of 12148501 is 10584121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10584121 = 19 ⋅557059.

It can be written as a sum of positive squares in 2 ways, for example, as 3709476 + 8439025 = 1926^2 + 2905^2 .

It is a cyclic number.

It is not a de Polignac number, because 12148501 - 2¹³ = 12140309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12148511) 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, 114556 + ... + 114661.

It is an arithmetic number, because the mean of its divisors is an integer number (3094443).

Almost surely, 2^12148501 is an apocalyptic number.

It is an amenable number.

12148501 is a deficient number, since it is larger than the sum of its proper divisors (229271).

12148501 is an equidigital number, since it uses as much as digits as its factorization.

12148501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229270.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 12148501 is about 3485.4699826566. The cubic root of 12148501 is about 229.8833750260.

The spelling of 12148501 in words is "twelve million, one hundred forty-eight thousand, five hundred one".