1252164365 has 8 divisors (see below), whose sum is σ = 1534567680. Its totient is φ = 980417872.

The previous prime is 1252164337. The next prime is 1252164437. The reversal of 1252164365 is 5634612521.

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 1252164365 - 2¹⁶ = 1252098829 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2663945 + ... + 2664414.

It is an arithmetic number, because the mean of its divisors is an integer number (191820960).

Almost surely, 2^1252164365 is an apocalyptic number.

It is an amenable number.

1252164365 is a deficient number, since it is larger than the sum of its proper divisors (282403315).

1252164365 is an equidigital number, since it uses as much as digits as its factorization.

1252164365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5328411.

The product of its digits is 43200, while the sum is 35.

The square root of 1252164365 is about 35385.9345644565. The cubic root of 1252164365 is about 1077.8387175917.

Adding to 1252164365 its reverse (5634612521), we get a palindrome (6886776886).

The spelling of 1252164365 in words is "one billion, two hundred fifty-two million, one hundred sixty-four thousand, three hundred sixty-five".