1352642231 has 4 divisors (see below), whose sum is σ = 1353218472. Its totient is φ = 1352065992.

The previous prime is 1352642219. The next prime is 1352642279. The reversal of 1352642231 is 1322462531.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1352642231 - 2¹⁰ = 1352641207 is a prime.

It is a super-2 number, since 2×1352642231² = 3659282010169314722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1352642194 and 1352642203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352642131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284585 + ... + 289298.

It is an arithmetic number, because the mean of its divisors is an integer number (338304618).

Almost surely, 2^1352642231 is an apocalyptic number.

1352642231 is a deficient number, since it is larger than the sum of its proper divisors (576241).

1352642231 is an equidigital number, since it uses as much as digits as its factorization.

1352642231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576240.

The product of its digits is 8640, while the sum is 29.

The square root of 1352642231 is about 36778.2847751224. The cubic root of 1352642231 is about 1105.9300213401.

The spelling of 1352642231 in words is "one billion, three hundred fifty-two million, six hundred forty-two thousand, two hundred thirty-one".