148984109 has 4 divisors (see below), whose sum is σ = 153790080. Its totient is φ = 144178140.

The previous prime is 148984091. The next prime is 148984117. The reversal of 148984109 is 901489841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 148984109 - 2⁸ = 148983853 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 148984109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148984159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2402939 + ... + 2403000.

It is an arithmetic number, because the mean of its divisors is an integer number (38447520).

Almost surely, 2^148984109 is an apocalyptic number.

It is an amenable number.

148984109 is a deficient number, since it is larger than the sum of its proper divisors (4805971).

148984109 is an equidigital number, since it uses as much as digits as its factorization.

148984109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805970.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 148984109 is about 12205.9046776550. The cubic root of 148984109 is about 530.1270717027.

The spelling of 148984109 in words is "one hundred forty-eight million, nine hundred eighty-four thousand, one hundred nine".