149214305 has 4 divisors (see below), whose sum is σ = 179057172. Its totient is φ = 119371440.

The previous prime is 149214223. The next prime is 149214311. The reversal of 149214305 is 503412941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 503412941 = 857 ⋅587413.

It can be written as a sum of positive squares in 2 ways, for example, as 39551521 + 109662784 = 6289^2 + 10472^2 .

It is not a de Polignac number, because 149214305 - 2¹⁸ = 148952161 is a prime.

It is an alternating number because its digits alternate between odd and even.

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, 14921426 + ... + 14921435.

It is an arithmetic number, because the mean of its divisors is an integer number (44764293).

Almost surely, 2^149214305 is an apocalyptic number.

It is an amenable number.

149214305 is a deficient number, since it is larger than the sum of its proper divisors (29842867).

149214305 is an equidigital number, since it uses as much as digits as its factorization.

149214305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29842866.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 149214305 is about 12215.3307364148. The cubic root of 149214305 is about 530.3999650889.

The spelling of 149214305 in words is "one hundred forty-nine million, two hundred fourteen thousand, three hundred five".