148038449 has 4 divisors (see below), whose sum is σ = 159426036. Its totient is φ = 136650864.

The previous prime is 148038421. The next prime is 148038461. The reversal of 148038449 is 944830841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81126049 + 66912400 = 9007^2 + 8180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148038449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148038749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5693774 + ... + 5693799.

It is an arithmetic number, because the mean of its divisors is an integer number (39856509).

Almost surely, 2^148038449 is an apocalyptic number.

It is an amenable number.

148038449 is a deficient number, since it is larger than the sum of its proper divisors (11387587).

148038449 is a wasteful number, since it uses less digits than its factorization.

148038449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11387586.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 148038449 is about 12167.1052021424. The cubic root of 148038449 is about 529.0030493331.

The spelling of 148038449 in words is "one hundred forty-eight million, thirty-eight thousand, four hundred forty-nine".