148818819 has 4 divisors (see below), whose sum is σ = 198425096. Its totient is φ = 99212544.

The previous prime is 148818793. The next prime is 148818841. The reversal of 148818819 is 918818841.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 148818819 - 2²³ = 140430211 is a prime.

It is a super-2 number, since 2×148818819² = 44294081777109522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148818619) 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, 24803134 + ... + 24803139.

It is an arithmetic number, because the mean of its divisors is an integer number (49606274).

Almost surely, 2^148818819 is an apocalyptic number.

148818819 is a deficient number, since it is larger than the sum of its proper divisors (49606277).

148818819 is an equidigital number, since it uses as much as digits as its factorization.

148818819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49606276.

The product of its digits is 147456, while the sum is 48.

The square root of 148818819 is about 12199.1318953440. The cubic root of 148818819 is about 529.9309498271.

The spelling of 148818819 in words is "one hundred forty-eight million, eight hundred eighteen thousand, eight hundred nineteen".