1352831261 has 4 divisors (see below), whose sum is σ = 1362564000. Its totient is φ = 1343098524.

The previous prime is 1352831251. The next prime is 1352831279. The reversal of 1352831261 is 1621382531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1352831261 - 2²² = 1348636957 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 (1352831251) 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, 4866161 + ... + 4866438.

It is an arithmetic number, because the mean of its divisors is an integer number (340641000).

Almost surely, 2^1352831261 is an apocalyptic number.

It is an amenable number.

1352831261 is a deficient number, since it is larger than the sum of its proper divisors (9732739).

1352831261 is an equidigital number, since it uses as much as digits as its factorization.

1352831261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9732738.

The product of its digits is 8640, while the sum is 32.

The square root of 1352831261 is about 36780.8545441783. The cubic root of 1352831261 is about 1105.9815363699.

The spelling of 1352831261 in words is "one billion, three hundred fifty-two million, eight hundred thirty-one thousand, two hundred sixty-one".