1493231 has 4 divisors (see below), whose sum is σ = 1518600. Its totient is φ = 1467864.

The previous prime is 1493221. The next prime is 1493249. The reversal of 1493231 is 1323941.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1493231 is a prime.

It is a super-2 number, since 2×1493231² = 4459477638722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1493197 and 1493206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12596 + ... + 12713.

It is an arithmetic number, because the mean of its divisors is an integer number (379650).

2^1493231 is an apocalyptic number.

1493231 is a deficient number, since it is larger than the sum of its proper divisors (25369).

1493231 is an equidigital number, since it uses as much as digits as its factorization.

1493231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25368.

The product of its digits is 648, while the sum is 23.

The square root of 1493231 is about 1221.9783140465. The cubic root of 1493231 is about 114.2989741311.

The spelling of 1493231 in words is "one million, four hundred ninety-three thousand, two hundred thirty-one".