149420305 has 16 divisors (see below), whose sum is σ = 187484544. Its totient is φ = 114104320.

The previous prime is 149420291. The next prime is 149420333. The reversal of 149420305 is 503024941.

It is not a de Polignac number, because 149420305 - 2⁹ = 149419793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72702 + ... + 74728.

It is an arithmetic number, because the mean of its divisors is an integer number (11717784).

Almost surely, 2^149420305 is an apocalyptic number.

It is an amenable number.

149420305 is a deficient number, since it is larger than the sum of its proper divisors (38064239).

149420305 is a wasteful number, since it uses less digits than its factorization.

149420305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 149420305 is about 12223.7598552982. The cubic root of 149420305 is about 530.6439366707.

The spelling of 149420305 in words is "one hundred forty-nine million, four hundred twenty thousand, three hundred five".