149223208 has 8 divisors (see below), whose sum is σ = 279793530. Its totient is φ = 74611600.

The previous prime is 149223197. The next prime is 149223211. The reversal of 149223208 is 802322941.

149223208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 143568324 + 5654884 = 11982^2 + 2378^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×149223208² = 44535131611622528, 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 149223208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9326443 + ... + 9326458.

Almost surely, 2^149223208 is an apocalyptic number.

It is an amenable number.

149223208 is a deficient number, since it is larger than the sum of its proper divisors (130570322).

149223208 is a wasteful number, since it uses less digits than its factorization.

149223208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18652907 (or 18652903 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 149223208 is about 12215.6951500928. The cubic root of 149223208 is about 530.4105138027.

The spelling of 149223208 in words is "one hundred forty-nine million, two hundred twenty-three thousand, two hundred eight".