1493501 has 4 divisors (see below), whose sum is σ = 1581372. Its totient is φ = 1405632.

The previous prime is 1493491. The next prime is 1493537. The reversal of 1493501 is 1053941.

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 592900 + 900601 = 770^2 + 949^2 .

It is a cyclic number.

It is not a de Polignac number, because 1493501 - 2¹⁸ = 1231357 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 (1493581) 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, 43910 + ... + 43943.

It is an arithmetic number, because the mean of its divisors is an integer number (395343).

2^1493501 is an apocalyptic number.

It is an amenable number.

1493501 is a deficient number, since it is larger than the sum of its proper divisors (87871).

1493501 is an equidigital number, since it uses as much as digits as its factorization.

1493501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87870.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1493501 is about 1222.0887856453. The cubic root of 1493501 is about 114.3058627423.

The spelling of 1493501 in words is "one million, four hundred ninety-three thousand, five hundred one".