145249908 has 48 divisors (see below), whose sum is σ = 358848000. Its totient is φ = 45599328.

The previous prime is 145249859. The next prime is 145249933. The reversal of 145249908 is 809942541.

It is a self number, because there is not a number n which added to its sum of digits gives 145249908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39033 + ... + 42591.

It is an arithmetic number, because the mean of its divisors is an integer number (7476000).

Almost surely, 2^145249908 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145249908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179424000).

145249908 is an abundant number, since it is smaller than the sum of its proper divisors (213598092).

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

145249908 is a wasteful number, since it uses less digits than its factorization.

145249908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3764 (or 3762 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 145249908 is about 12051.9669763902. The cubic root of 145249908 is about 525.6604332468.

It can be divided in two parts, 1452 and 49908, that added together give a triangular number (51360 = T₃₂₀).

The spelling of 145249908 in words is "one hundred forty-five million, two hundred forty-nine thousand, nine hundred eight".