149507305 has 4 divisors (see below), whose sum is σ = 179408772. Its totient is φ = 119605840.

The previous prime is 149507261. The next prime is 149507311. The reversal of 149507305 is 503705941.

149507305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20820969 + 128686336 = 4563^2 + 11344^2 .

It is not a de Polignac number, because 149507305 - 2¹⁹ = 148983017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14950726 + ... + 14950735.

It is an arithmetic number, because the mean of its divisors is an integer number (44852193).

Almost surely, 2^149507305 is an apocalyptic number.

It is an amenable number.

149507305 is a deficient number, since it is larger than the sum of its proper divisors (29901467).

149507305 is an equidigital number, since it uses as much as digits as its factorization.

149507305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29901466.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 149507305 is about 12227.3179806530. The cubic root of 149507305 is about 530.7469058652.

The spelling of 149507305 in words is "one hundred forty-nine million, five hundred seven thousand, three hundred five".