149845040 has 40 divisors (see below), whose sum is σ = 348936000. Its totient is φ = 59844096.

The previous prime is 149845027. The next prime is 149845043. The reversal of 149845040 is 40548941.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (149845043) 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, 73961 + ... + 75959.

It is an arithmetic number, because the mean of its divisors is an integer number (8723400).

Almost surely, 2^149845040 is an apocalyptic number.

149845040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149845040 is the 9995-th pentagonal number.

It is an amenable number.

149845040 is an abundant number, since it is smaller than the sum of its proper divisors (199090960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149845040 is a wasteful number, since it uses less digits than its factorization.

149845040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949 (or 2943 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 149845040 is about 12241.1208637118. The cubic root of 149845040 is about 531.1462553587.

The spelling of 149845040 in words is "one hundred forty-nine million, eight hundred forty-five thousand, forty".