149300109 has 36 divisors (see below), whose sum is σ = 252114876. Its totient is φ = 84889728.

The previous prime is 149300101. The next prime is 149300113. The reversal of 149300109 is 901003941.

It can be written as a sum of positive squares in 2 ways, for example, as 97416900 + 51883209 = 9870^2 + 7203^2 .

It is not a de Polignac number, because 149300109 - 2³ = 149300101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149300101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 102027 + ... + 103479.

It is an arithmetic number, because the mean of its divisors is an integer number (7003191).

Almost surely, 2^149300109 is an apocalyptic number.

It is an amenable number.

149300109 is a deficient number, since it is larger than the sum of its proper divisors (102814767).

149300109 is a wasteful number, since it uses less digits than its factorization.

149300109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706 (or 1696 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 149300109 is about 12218.8423756099. The cubic root of 149300109 is about 530.5016124432.

The spelling of 149300109 in words is "one hundred forty-nine million, three hundred thousand, one hundred nine".