149090205 has 32 divisors (see below), whose sum is σ = 267274368. Its totient is φ = 70329600.

The previous prime is 149090197. The next prime is 149090213. The reversal of 149090205 is 502090941.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (149090197) and next prime (149090213).

It is not a de Polignac number, because 149090205 - 2³ = 149090197 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 6106 + ... + 18315.

It is an arithmetic number, because the mean of its divisors is an integer number (8352324).

Almost surely, 2^149090205 is an apocalyptic number.

149090205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149090205 is a deficient number, since it is larger than the sum of its proper divisors (118184163).

149090205 is a wasteful number, since it uses less digits than its factorization.

149090205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24477.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 149090205 is about 12210.2499974407. The cubic root of 149090205 is about 530.2528815768.

The spelling of 149090205 in words is "one hundred forty-nine million, ninety thousand, two hundred five".