1538741753 has 4 divisors (see below), whose sum is σ = 1547636388. Its totient is φ = 1529847120.

The previous prime is 1538741741. The next prime is 1538741783. The reversal of 1538741753 is 3571478351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3571478351 = 7 ⋅510211193.

It can be written as a sum of positive squares in 2 ways, for example, as 1487876329 + 50865424 = 38573^2 + 7132^2 .

It is a cyclic number.

It is not a de Polignac number, because 1538741753 - 2¹⁰ = 1538740729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1538741783) 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, 4447058 + ... + 4447403.

It is an arithmetic number, because the mean of its divisors is an integer number (386909097).

Almost surely, 2^1538741753 is an apocalyptic number.

It is an amenable number.

1538741753 is a deficient number, since it is larger than the sum of its proper divisors (8894635).

1538741753 is an equidigital number, since it uses as much as digits as its factorization.

1538741753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8894634.

The product of its digits is 352800, while the sum is 44.

The square root of 1538741753 is about 39226.7989134979. The cubic root of 1538741753 is about 1154.4857572214.

The spelling of 1538741753 in words is "one billion, five hundred thirty-eight million, seven hundred forty-one thousand, seven hundred fifty-three".