1051144225 has 12 divisors (see below), whose sum is σ = 1315380220. Its totient is φ = 833198400.

The previous prime is 1051144189. The next prime is 1051144247. The reversal of 1051144225 is 5224411501.

It can be written as a sum of positive squares in 6 ways, for example, as 114233344 + 936910881 = 10688^2 + 30609^2 .

It is not a de Polignac number, because 1051144225 - 2⁷ = 1051144097 is a prime.

It is a super-2 number, since 2×1051144225² = 2209808363501701250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 1051144225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190146 + ... + 195595.

Almost surely, 2^1051144225 is an apocalyptic number.

It is an amenable number.

1051144225 is a deficient number, since it is larger than the sum of its proper divisors (264235995).

1051144225 is a wasteful number, since it uses less digits than its factorization.

1051144225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385860 (or 385855 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1051144225 is about 32421.3544596767. The cubic root of 1051144225 is about 1016.7654247281.

Adding to 1051144225 its reverse (5224411501), we get a palindrome (6275555726).

The spelling of 1051144225 in words is "one billion, fifty-one million, one hundred forty-four thousand, two hundred twenty-five".