148749 has 8 divisors (see below), whose sum is σ = 200160. Its totient is φ = 98256.

The previous prime is 148747. The next prime is 148763. The reversal of 148749 is 947841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 148749 - 2¹ = 148747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399 + ... + 675.

It is an arithmetic number, because the mean of its divisors is an integer number (25020).

2¹⁴⁸⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

148749 is a deficient number, since it is larger than the sum of its proper divisors (51411).

148749 is a wasteful number, since it uses less digits than its factorization.

148749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459.

The product of its digits is 8064, while the sum is 33.

The square root of 148749 is about 385.6799191039. The cubic root of 148749 is about 52.9848063722.

The spelling of 148749 in words is "one hundred forty-eight thousand, seven hundred forty-nine".