1252415422 has 4 divisors (see below), whose sum is σ = 1878623136. Its totient is φ = 626207710.

The previous prime is 1252415401. The next prime is 1252415441. The reversal of 1252415422 is 2245142521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313103854 + ... + 313103857.

It is an arithmetic number, because the mean of its divisors is an integer number (469655784).

Almost surely, 2^1252415422 is an apocalyptic number.

1252415422 is a deficient number, since it is larger than the sum of its proper divisors (626207714).

1252415422 is an equidigital number, since it uses as much as digits as its factorization.

1252415422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626207713.

The product of its digits is 6400, while the sum is 28.

The square root of 1252415422 is about 35389.4817989752. The cubic root of 1252415422 is about 1077.9107477712.

Adding to 1252415422 its reverse (2245142521), we get a palindrome (3497557943).

The spelling of 1252415422 in words is "one billion, two hundred fifty-two million, four hundred fifteen thousand, four hundred twenty-two".