145803776 has 80 divisors (see below), whose sum is σ = 305230464. Its totient is φ = 69525504.

The previous prime is 145803773. The next prime is 145803803. The reversal of 145803776 is 677308541.

It is not an unprimeable number, because it can be changed into a prime (145803773) 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, 1756631 + ... + 1756713.

Almost surely, 2^145803776 is an apocalyptic number.

145803776 is a gapful number since it is divisible by the number (16) 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 145803776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152615232).

145803776 is an abundant number, since it is smaller than the sum of its proper divisors (159426688).

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

145803776 is an frugal number, since it uses more digits than its factorization.

145803776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 145803776 is about 12074.9234366103. The cubic root of 145803776 is about 526.3277364979.

The spelling of 145803776 in words is "one hundred forty-five million, eight hundred three thousand, seven hundred seventy-six".