148005287 has 4 divisors (see below), whose sum is σ = 148066296. Its totient is φ = 147944280.

The previous prime is 148005271. The next prime is 148005301. The reversal of 148005287 is 782500841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 782500841 = 521 ⋅1501921.

It is a cyclic number.

It is not a de Polignac number, because 148005287 - 2⁴ = 148005271 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 (148005227) 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, 26708 + ... + 31769.

It is an arithmetic number, because the mean of its divisors is an integer number (37016574).

Almost surely, 2^148005287 is an apocalyptic number.

148005287 is a deficient number, since it is larger than the sum of its proper divisors (61009).

148005287 is an equidigital number, since it uses as much as digits as its factorization.

148005287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61008.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 148005287 is about 12165.7423530173. The cubic root of 148005287 is about 528.9635458362.

The spelling of 148005287 in words is "one hundred forty-eight million, five thousand, two hundred eighty-seven".