148874197 has 4 divisors (see below), whose sum is σ = 154007820. Its totient is φ = 143740576.

The previous prime is 148874171. The next prime is 148874203. The reversal of 148874197 is 791478841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 791478841 = 683 ⋅1158827.

It can be written as a sum of positive squares in 2 ways, for example, as 113934276 + 34939921 = 10674^2 + 5911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148874197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 148874197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148874107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2566768 + ... + 2566825.

It is an arithmetic number, because the mean of its divisors is an integer number (38501955).

Almost surely, 2^148874197 is an apocalyptic number.

It is an amenable number.

148874197 is a deficient number, since it is larger than the sum of its proper divisors (5133623).

148874197 is an equidigital number, since it uses as much as digits as its factorization.

148874197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5133622.

The product of its digits is 451584, while the sum is 49.

The square root of 148874197 is about 12201.4014359007. The cubic root of 148874197 is about 529.9966737658.

The spelling of 148874197 in words is "one hundred forty-eight million, eight hundred seventy-four thousand, one hundred ninety-seven".