1351231 has 8 divisors (see below), whose sum is σ = 1556640. Its totient is φ = 1148928.

The previous prime is 1351213. The next prime is 1351241. The reversal of 1351231 is 1321531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1351231 - 2⁵ = 1351199 is a prime.

It is a super-2 number, since 2×1351231² = 3651650430722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351241) 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 7 ways as a sum of consecutive naturals, for example, 255 + ... + 1663.

It is an arithmetic number, because the mean of its divisors is an integer number (194580).

2^1351231 is an apocalyptic number.

1351231 is a deficient number, since it is larger than the sum of its proper divisors (205409).

1351231 is a wasteful number, since it uses less digits than its factorization.

1351231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553.

The product of its digits is 90, while the sum is 16.

The square root of 1351231 is about 1162.4246212121. The cubic root of 1351231 is about 110.5545276632.

Adding to 1351231 its reverse (1321531), we get a palindrome (2672762).

The spelling of 1351231 in words is "one million, three hundred fifty-one thousand, two hundred thirty-one".