145477782 has 56 divisors (see below), whose sum is σ = 330444504. Its totient is φ = 48009024.

The previous prime is 145477781. The next prime is 145477811. The reversal of 145477782 is 287774541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145477781) by changing a digit.

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 27 ways as a sum of consecutive naturals, for example, 164313 + ... + 165195.

Almost surely, 2^145477782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145477782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165222252).

145477782 is an abundant number, since it is smaller than the sum of its proper divisors (184966722).

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

145477782 is an equidigital number, since it uses as much as digits as its factorization.

145477782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016 (or 1001 counting only the distinct ones).

The product of its digits is 439040, while the sum is 45.

The square root of 145477782 is about 12061.4170809238. The cubic root of 145477782 is about 525.9351821511.

The spelling of 145477782 in words is "one hundred forty-five million, four hundred seventy-seven thousand, seven hundred eighty-two".