145487712 has 144 divisors (see below), whose sum is σ = 420396480. Its totient is φ = 43925760.

The previous prime is 145487707. The next prime is 145487729. The reversal of 145487712 is 217784541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1752823 + ... + 1752905.

It is an arithmetic number, because the mean of its divisors is an integer number (2919420).

Almost surely, 2^145487712 is an apocalyptic number.

145487712 is a gapful number since it is divisible by the number (12) 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 145487712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210198240).

145487712 is an abundant number, since it is smaller than the sum of its proper divisors (274908768).

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

145487712 is a wasteful number, since it uses less digits than its factorization.

145487712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 138 counting only the distinct ones).

The product of its digits is 62720, while the sum is 39.

The square root of 145487712 is about 12061.8287170727. The cubic root of 145487712 is about 525.9471482797.

The spelling of 145487712 in words is "one hundred forty-five million, four hundred eighty-seven thousand, seven hundred twelve".