1352252749 has 4 divisors (see below), whose sum is σ = 1352455164. Its totient is φ = 1352050336.

The previous prime is 1352252729. The next prime is 1352252761. The reversal of 1352252749 is 9472522531.

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 494172900 + 858079849 = 22230^2 + 29293^2 .

It is a cyclic number.

It is not a de Polignac number, because 1352252749 - 2⁷ = 1352252621 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 (1352252729) 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, 90832 + ... + 104665.

It is an arithmetic number, because the mean of its divisors is an integer number (338113791).

Almost surely, 2^1352252749 is an apocalyptic number.

It is an amenable number.

1352252749 is a deficient number, since it is larger than the sum of its proper divisors (202415).

1352252749 is an equidigital number, since it uses as much as digits as its factorization.

1352252749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202414.

The product of its digits is 151200, while the sum is 40.

The square root of 1352252749 is about 36772.9893943911. The cubic root of 1352252749 is about 1105.8238633884.

The spelling of 1352252749 in words is "one billion, three hundred fifty-two million, two hundred fifty-two thousand, seven hundred forty-nine".