144513493 has 4 divisors (see below), whose sum is σ = 145470688. Its totient is φ = 143556300.

The previous prime is 144513469. The next prime is 144513517. The reversal of 144513493 is 394315441.

144513493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 394315441 = 13 ⋅30331957.

It is an interprime number because it is at equal distance from previous prime (144513469) and next prime (144513517).

It is a cyclic number.

It is not a de Polignac number, because 144513493 - 2¹³ = 144505301 is a prime.

It is a super-2 number, since 2×144513493² = 41768299318122098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144513403) 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, 478371 + ... + 478672.

It is an arithmetic number, because the mean of its divisors is an integer number (36367672).

Almost surely, 2^144513493 is an apocalyptic number.

It is an amenable number.

144513493 is a deficient number, since it is larger than the sum of its proper divisors (957195).

144513493 is an equidigital number, since it uses as much as digits as its factorization.

144513493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957194.

The product of its digits is 25920, while the sum is 34.

The square root of 144513493 is about 12021.3765018820. The cubic root of 144513493 is about 524.7705639942.

The spelling of 144513493 in words is "one hundred forty-four million, five hundred thirteen thousand, four hundred ninety-three".