148821806 has 16 divisors (see below), whose sum is σ = 257510016. Its totient is φ = 63184056.

The previous prime is 148821781. The next prime is 148821811. The reversal of 148821806 is 608128841.

It is a super-2 number, since 2×148821806² = 44295859882203272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 148821806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48176 + ... + 51171.

It is an arithmetic number, because the mean of its divisors is an integer number (16094376).

Almost surely, 2^148821806 is an apocalyptic number.

148821806 is a deficient number, since it is larger than the sum of its proper divisors (108688210).

148821806 is a wasteful number, since it uses less digits than its factorization.

148821806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99463.

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 148821806 is about 12199.2543214739. The cubic root of 148821806 is about 529.9344952863.

The spelling of 148821806 in words is "one hundred forty-eight million, eight hundred twenty-one thousand, eight hundred six".