149209814 has 16 divisors (see below), whose sum is σ = 249343920. Its totient is φ = 66491040.

The previous prime is 149209813. The next prime is 149209861. The reversal of 149209814 is 418902941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149209811) 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 7 ways as a sum of consecutive naturals, for example, 98192 + ... + 99699.

It is an arithmetic number, because the mean of its divisors is an integer number (15583995).

Almost surely, 2^149209814 is an apocalyptic number.

149209814 is a deficient number, since it is larger than the sum of its proper divisors (100134106).

149209814 is a wasteful number, since it uses less digits than its factorization.

149209814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197935.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 149209814 is about 12215.1469086540. The cubic root of 149209814 is about 530.3946437713.

The spelling of 149209814 in words is "one hundred forty-nine million, two hundred nine thousand, eight hundred fourteen".