149208851 has 18 divisors (see below), whose sum is σ = 166933620. Its totient is φ = 133261480.

The previous prime is 149208841. The next prime is 149208853. The reversal of 149208851 is 158802941.

It is not a de Polignac number, because 149208851 - 2²² = 145014547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149208853) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 833480 + ... + 833658.

It is an arithmetic number, because the mean of its divisors is an integer number (9274090).

Almost surely, 2^149208851 is an apocalyptic number.

149208851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

149208851 is a deficient number, since it is larger than the sum of its proper divisors (17724769).

149208851 is an equidigital number, since it uses as much as digits as its factorization.

149208851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 149208851 is about 12215.1074903171. The cubic root of 149208851 is about 530.3935027133.

The spelling of 149208851 in words is "one hundred forty-nine million, two hundred eight thousand, eight hundred fifty-one".