1493038453 has 4 divisors (see below), whose sum is σ = 1508430700. Its totient is φ = 1477646208.

The previous prime is 1493038441. The next prime is 1493038499. The reversal of 1493038453 is 3548303941.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 378613764 + 1114424689 = 19458^2 + 33383^2 .

It is a cyclic number.

It is not a de Polignac number, because 1493038453 - 2¹³ = 1493030261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493038153) 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, 7695978 + ... + 7696171.

It is an arithmetic number, because the mean of its divisors is an integer number (377107675).

Almost surely, 2^1493038453 is an apocalyptic number.

It is an amenable number.

1493038453 is a deficient number, since it is larger than the sum of its proper divisors (15392247).

1493038453 is an equidigital number, since it uses as much as digits as its factorization.

1493038453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15392246.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 1493038453 is about 38639.8557580123. The cubic root of 1493038453 is about 1142.9406110013.

The spelling of 1493038453 in words is "one billion, four hundred ninety-three million, thirty-eight thousand, four hundred fifty-three".