149964 has 12 divisors (see below), whose sum is σ = 349944. Its totient is φ = 49984.
The previous prime is 149953. The next prime is 149969. The reversal of 149964 is 469941.
It is a tau number, because it is divible by the number of its divisors (12).
It is a plaindrome in base 16.
It is not an unprimeable number, because it can be changed into a prime (149969) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6237 + ... + 6260.
It is an arithmetic number, because the mean of its divisors is an integer number (29162).
2149964 is an apocalyptic number.
It is an amenable number.
149964 is an abundant number, since it is smaller than the sum of its proper divisors (199980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
149964 is a wasteful number, since it uses less digits than its factorization.
149964 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12504 (or 12502 counting only the distinct ones).
The product of its digits is 7776, while the sum is 33.
The square root of 149964 is about 387.2518560317. The cubic root of 149964 is about 53.1286774848.
The spelling of 149964 in words is "one hundred forty-nine thousand, nine hundred sixty-four".
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