145083240 has 96 divisors (see below), whose sum is σ = 496360800. Its totient is φ = 36650880.

The previous prime is 145083233. The next prime is 145083283. The reversal of 145083240 is 42380541.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 23 ways as a sum of consecutive naturals, for example, 3766 + ... + 17445.

It is an arithmetic number, because the mean of its divisors is an integer number (5170425).

Almost surely, 2^145083240 is an apocalyptic number.

145083240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145083240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248180400).

145083240 is an abundant number, since it is smaller than the sum of its proper divisors (351277560).

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

145083240 is a wasteful number, since it uses less digits than its factorization.

145083240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21247 (or 21240 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 145083240 is about 12045.0504357599. The cubic root of 145083240 is about 525.4592987434.

The spelling of 145083240 in words is "one hundred forty-five million, eighty-three thousand, two hundred forty".