149420205 has 48 divisors (see below), whose sum is σ = 286191360. Its totient is φ = 71510400.

The previous prime is 149420203. The next prime is 149420207. The reversal of 149420205 is 502024941.

It is an interprime number because it is at equal distance from previous prime (149420203) and next prime (149420207).

It is not a de Polignac number, because 149420205 - 2¹ = 149420203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149420203) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 37195 + ... + 41015.

It is an arithmetic number, because the mean of its divisors is an integer number (5962320).

Almost surely, 2^149420205 is an apocalyptic number.

149420205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149420205 is a deficient number, since it is larger than the sum of its proper divisors (136771155).

149420205 is a wasteful number, since it uses less digits than its factorization.

149420205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3922 (or 3919 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 149420205 is about 12223.7557649030. The cubic root of 149420205 is about 530.6438182924.

The spelling of 149420205 in words is "one hundred forty-nine million, four hundred twenty thousand, two hundred five".