148213749 has 8 divisors (see below), whose sum is σ = 202959520. Its totient is φ = 96138576.

The previous prime is 148213739. The next prime is 148213753. The reversal of 148213749 is 947312841.

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

It is not a de Polignac number, because 148213749 - 2¹⁹ = 147689461 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 (148213739) 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 7 ways as a sum of consecutive naturals, for example, 667519 + ... + 667740.

It is an arithmetic number, because the mean of its divisors is an integer number (25369940).

Almost surely, 2^148213749 is an apocalyptic number.

It is an amenable number.

148213749 is a deficient number, since it is larger than the sum of its proper divisors (54745771).

148213749 is a wasteful number, since it uses less digits than its factorization.

148213749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335299.

The product of its digits is 48384, while the sum is 39.

The square root of 148213749 is about 12174.3069207245. The cubic root of 148213749 is about 529.2117736103.

The spelling of 148213749 in words is "one hundred forty-eight million, two hundred thirteen thousand, seven hundred forty-nine".