145942272 has 108 divisors (see below), whose sum is σ = 480953200. Its totient is φ = 41693184.

The previous prime is 145942267. The next prime is 145942283. The reversal of 145942272 is 272249541.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11604 + ... + 20652.

Almost surely, 2^145942272 is an apocalyptic number.

145942272 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 145942272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240476600).

145942272 is an abundant number, since it is smaller than the sum of its proper divisors (335010928).

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

145942272 is an equidigital number, since it uses as much as digits as its factorization.

145942272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9078 (or 9061 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 145942272 is about 12080.6569357796. The cubic root of 145942272 is about 526.4943330478.

The spelling of 145942272 in words is "one hundred forty-five million, nine hundred forty-two thousand, two hundred seventy-two".