148820818 has 4 divisors (see below), whose sum is σ = 223231230. Its totient is φ = 74410408.

The previous prime is 148820813. The next prime is 148820821. The reversal of 148820818 is 818028841.

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

It can be written as a sum of positive squares in only one way, i.e., 90954369 + 57866449 = 9537^2 + 7607^2 .

It is not an unprimeable number, because it can be changed into a prime (148820813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37205203 + ... + 37205206.

Almost surely, 2^148820818 is an apocalyptic number.

148820818 is a deficient number, since it is larger than the sum of its proper divisors (74410412).

148820818 is an equidigital number, since it uses as much as digits as its factorization.

148820818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74410411.

The product of its (nonzero) digits is 32768, while the sum is 40.

The square root of 148820818 is about 12199.2138271284. The cubic root of 148820818 is about 529.9333225719.

The spelling of 148820818 in words is "one hundred forty-eight million, eight hundred twenty thousand, eight hundred eighteen".