144752506 has 4 divisors (see below), whose sum is σ = 217128762. Its totient is φ = 72376252.

The previous prime is 144752479. The next prime is 144752513. The reversal of 144752506 is 605257441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 605257441 = 9787 ⋅61843.

It can be written as a sum of positive squares in only one way, i.e., 103856481 + 40896025 = 10191^2 + 6395^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36188125 + ... + 36188128.

Almost surely, 2^144752506 is an apocalyptic number.

144752506 is a deficient number, since it is larger than the sum of its proper divisors (72376256).

144752506 is an equidigital number, since it uses as much as digits as its factorization.

144752506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72376255.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 144752506 is about 12031.3135608711. The cubic root of 144752506 is about 525.0597132382.

The spelling of 144752506 in words is "one hundred forty-four million, seven hundred fifty-two thousand, five hundred six".