145909908 has 36 divisors (see below), whose sum is σ = 372284640. Its totient is φ = 48180816.

The previous prime is 145909837. The next prime is 145909913. The reversal of 145909908 is 809909541.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 15088 + ... + 22791.

It is an arithmetic number, because the mean of its divisors is an integer number (10341240).

Almost surely, 2^145909908 is an apocalyptic number.

145909908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

145909908 is an abundant number, since it is smaller than the sum of its proper divisors (226374732).

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

145909908 is a wasteful number, since it uses less digits than its factorization.

145909908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37996 (or 37991 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 145909908 is about 12079.3173648183. The cubic root of 145909908 is about 526.4554118998.

The spelling of 145909908 in words is "one hundred forty-five million, nine hundred nine thousand, nine hundred eight".