145871860 has 24 divisors (see below), whose sum is σ = 307228320. Its totient is φ = 58177824.

The previous prime is 145871851. The next prime is 145871861. The reversal of 145871860 is 68178541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145871861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3570 + ... + 17449.

It is an arithmetic number, because the mean of its divisors is an integer number (12801180).

Almost surely, 2^145871860 is an apocalyptic number.

145871860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145871860 is an abundant number, since it is smaller than the sum of its proper divisors (161356460).

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

145871860 is a wasteful number, since it uses less digits than its factorization.

145871860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21375 (or 21373 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 145871860 is about 12077.7423386989. The cubic root of 145871860 is about 526.4096477770.

The spelling of 145871860 in words is "one hundred forty-five million, eight hundred seventy-one thousand, eight hundred sixty".