149209892 has 24 divisors (see below), whose sum is σ = 281747256. Its totient is φ = 68732928.

The previous prime is 149209877. The next prime is 149209903. The reversal of 149209892 is 298902941.

It can be written as a sum of positive squares in 4 ways, for example, as 50922496 + 98287396 = 7136^2 + 9914^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27518 + ... + 32490.

It is an arithmetic number, because the mean of its divisors is an integer number (11739469).

Almost surely, 2^149209892 is an apocalyptic number.

It is an amenable number.

149209892 is a deficient number, since it is larger than the sum of its proper divisors (132537364).

149209892 is a wasteful number, since it uses less digits than its factorization.

149209892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5567 (or 5565 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 149209892 is about 12215.1501014110. The cubic root of 149209892 is about 530.3947361932.

The spelling of 149209892 in words is "one hundred forty-nine million, two hundred nine thousand, eight hundred ninety-two".