1252236205 has 32 divisors (see below), whose sum is σ = 1664188416. Its totient is φ = 897000000.

The previous prime is 1252236203. The next prime is 1252236217. The reversal of 1252236205 is 5026322521.

It is not a de Polignac number, because 1252236205 - 2¹ = 1252236203 is a prime.

It is a super-2 number, since 2×1252236205² = 3136191026225604050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252236203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1087380 + ... + 1088530.

It is an arithmetic number, because the mean of its divisors is an integer number (52005888).

Almost surely, 2^1252236205 is an apocalyptic number.

It is an amenable number.

1252236205 is a deficient number, since it is larger than the sum of its proper divisors (411952211).

1252236205 is a wasteful number, since it uses less digits than its factorization.

1252236205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1252236205 is about 35386.9496424883. The cubic root of 1252236205 is about 1077.8593300221.

Adding to 1252236205 its reverse (5026322521), we get a palindrome (6278558726).

The spelling of 1252236205 in words is "one billion, two hundred fifty-two million, two hundred thirty-six thousand, two hundred five".