1252144022 has 8 divisors (see below), whose sum is σ = 1888709400. Its totient is φ = 622574224.

The previous prime is 1252144013. The next prime is 1252144037. The reversal of 1252144022 is 2204412521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1748447 + ... + 1749162.

It is an arithmetic number, because the mean of its divisors is an integer number (236088675).

Almost surely, 2^1252144022 is an apocalyptic number.

1252144022 is a deficient number, since it is larger than the sum of its proper divisors (636565378).

1252144022 is a wasteful number, since it uses less digits than its factorization.

1252144022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497790.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1252144022 is about 35385.6471185705. The cubic root of 1252144022 is about 1077.8328806072.

Adding to 1252144022 its reverse (2204412521), we get a palindrome (3456556543).

The spelling of 1252144022 in words is "one billion, two hundred fifty-two million, one hundred forty-four thousand, twenty-two".