145237884 has 48 divisors (see below), whose sum is σ = 374927616. Its totient is φ = 43388800.

The previous prime is 145237871. The next prime is 145237909. The reversal of 145237884 is 488732541.

145237884 = T₃₂₉ + T₃₃₀ + ... + T₉₆₇.

145237884 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1624 + ... + 17120.

It is an arithmetic number, because the mean of its divisors is an integer number (7810992).

Almost surely, 2^145237884 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 145237884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187463808).

145237884 is an abundant number, since it is smaller than the sum of its proper divisors (229689732).

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

145237884 is a wasteful number, since it uses less digits than its factorization.

145237884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15586 (or 15584 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 145237884 is about 12051.4681263322. The cubic root of 145237884 is about 525.6459278665.

The spelling of 145237884 in words is "one hundred forty-five million, two hundred thirty-seven thousand, eight hundred eighty-four".