1352277469 has 4 divisors (see below), whose sum is σ = 1352529760. Its totient is φ = 1352025180.

The previous prime is 1352277419. The next prime is 1352277473. The reversal of 1352277469 is 9647722531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9647722531 = 23 ⋅419466197.

It is a cyclic number.

It is not a de Polignac number, because 1352277469 - 2⁹ = 1352276957 is a prime.

It is a super-2 number, since 2×1352277469² = 3657308706330091922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352277419) 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, 117927 + ... + 128884.

It is an arithmetic number, because the mean of its divisors is an integer number (338132440).

Almost surely, 2^1352277469 is an apocalyptic number.

It is an amenable number.

1352277469 is a deficient number, since it is larger than the sum of its proper divisors (252291).

1352277469 is an equidigital number, since it uses as much as digits as its factorization.

1352277469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252290.

The product of its digits is 635040, while the sum is 46.

The square root of 1352277469 is about 36773.3255091241. The cubic root of 1352277469 is about 1105.8306017242.

The spelling of 1352277469 in words is "one billion, three hundred fifty-two million, two hundred seventy-seven thousand, four hundred sixty-nine".