1252223166 has 64 divisors (see below), whose sum is σ = 2617284096. Its totient is φ = 399168000.

The previous prime is 1252223143. The next prime is 1252223171. The reversal of 1252223166 is 6613222521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2083266 + ... + 2083866.

It is an arithmetic number, because the mean of its divisors is an integer number (40895064).

Almost surely, 2^1252223166 is an apocalyptic number.

1252223166 is an abundant number, since it is smaller than the sum of its proper divisors (1365060930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1252223166 is a wasteful number, since it uses less digits than its factorization.

1252223166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its digits is 8640, while the sum is 30.

The square root of 1252223166 is about 35386.7654074232. The cubic root of 1252223166 is about 1077.8555889131.

Adding to 1252223166 its reverse (6613222521), we get a palindrome (7865445687).

The spelling of 1252223166 in words is "one billion, two hundred fifty-two million, two hundred twenty-three thousand, one hundred sixty-six".