148641849 has 24 divisors (see below), whose sum is σ = 223783560. Its totient is φ = 94956288.

The previous prime is 148641803. The next prime is 148641877. The reversal of 148641849 is 948146841.

It can be written as a sum of positive squares in 4 ways, for example, as 25431849 + 123210000 = 5043^2 + 11100^2 .

It is not a de Polignac number, because 148641849 - 2¹³ = 148633657 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (148641349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33679 + ... + 37835.

It is an arithmetic number, because the mean of its divisors is an integer number (9324315).

Almost surely, 2^148641849 is an apocalyptic number.

It is an amenable number.

148641849 is a deficient number, since it is larger than the sum of its proper divisors (75141711).

148641849 is a wasteful number, since it uses less digits than its factorization.

148641849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4329 (or 4326 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 148641849 is about 12191.8763527195. The cubic root of 148641849 is about 529.7208082169.

The spelling of 148641849 in words is "one hundred forty-eight million, six hundred forty-one thousand, eight hundred forty-nine".