148742649 has 40 divisors (see below), whose sum is σ = 244342560. Its totient is φ = 89424000.

The previous prime is 148742641. The next prime is 148742669. The reversal of 148742649 is 946247841.

It is not a de Polignac number, because 148742649 - 2³ = 148742641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148742641) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 123249 + ... + 124449.

It is an arithmetic number, because the mean of its divisors is an integer number (6108564).

Almost surely, 2^148742649 is an apocalyptic number.

It is an amenable number.

148742649 is a deficient number, since it is larger than the sum of its proper divisors (95599911).

148742649 is a wasteful number, since it uses less digits than its factorization.

148742649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363 (or 1354 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 148742649 is about 12196.0095523085. The cubic root of 148742649 is about 529.8405228024.

The spelling of 148742649 in words is "one hundred forty-eight million, seven hundred forty-two thousand, six hundred forty-nine".