148547109 has 4 divisors (see below), whose sum is σ = 198062816. Its totient is φ = 99031404.

The previous prime is 148547101. The next prime is 148547117. The reversal of 148547109 is 901745841.

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 an interprime number because it is at equal distance from previous prime (148547101) and next prime (148547117).

It is not a de Polignac number, because 148547109 - 2³ = 148547101 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 (148547101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24757849 + ... + 24757854.

It is an arithmetic number, because the mean of its divisors is an integer number (49515704).

Almost surely, 2^148547109 is an apocalyptic number.

It is an amenable number.

148547109 is a deficient number, since it is larger than the sum of its proper divisors (49515707).

148547109 is an equidigital number, since it uses as much as digits as its factorization.

148547109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49515706.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 148547109 is about 12187.9903593661. The cubic root of 148547109 is about 529.6082414088.

The spelling of 148547109 in words is "one hundred forty-eight million, five hundred forty-seven thousand, one hundred nine".