145169752 has 96 divisors (see below), whose sum is σ = 347321520. Its totient is φ = 56367360.

The previous prime is 145169729. The next prime is 145169777. The reversal of 145169752 is 257961541.

It is a congruent number.

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, 310623 + ... + 311089.

Almost surely, 2^145169752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145169752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173660760).

145169752 is an abundant number, since it is smaller than the sum of its proper divisors (202151768).

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

145169752 is a wasteful number, since it uses less digits than its factorization.

145169752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561 (or 550 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The square root of 145169752 is about 12048.6410852013. The cubic root of 145169752 is about 525.5637204127.

The spelling of 145169752 in words is "one hundred forty-five million, one hundred sixty-nine thousand, seven hundred fifty-two".