144869753 has 4 divisors (see below), whose sum is σ = 165565440. Its totient is φ = 124174068.

The previous prime is 144869743. The next prime is 144869759. The reversal of 144869753 is 357968441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 357968441 = 9221 ⋅38821.

It is a cyclic number.

It is not a de Polignac number, because 144869753 - 2¹² = 144865657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144869698 and 144869707.

It is not an unprimeable number, because it can be changed into a prime (144869759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10347833 + ... + 10347846.

It is an arithmetic number, because the mean of its divisors is an integer number (41391360).

Almost surely, 2^144869753 is an apocalyptic number.

It is an amenable number.

144869753 is a deficient number, since it is larger than the sum of its proper divisors (20695687).

144869753 is an equidigital number, since it uses as much as digits as its factorization.

144869753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20695686.

The product of its digits is 725760, while the sum is 47.

The square root of 144869753 is about 12036.1851514506. The cubic root of 144869753 is about 525.2014380440.

The spelling of 144869753 in words is "one hundred forty-four million, eight hundred sixty-nine thousand, seven hundred fifty-three".