1252045106 has 16 divisors (see below), whose sum is σ = 2025183384. Its totient is φ = 577110144.

The previous prime is 1252045103. The next prime is 1252045117. The reversal of 1252045106 is 6015402521.

It can be written as a sum of positive squares in 4 ways, for example, as 430936081 + 821109025 = 20759^2 + 28655^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1252045103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11051 + ... + 51246.

Almost surely, 2^1252045106 is an apocalyptic number.

1252045106 is a deficient number, since it is larger than the sum of its proper divisors (773138278).

1252045106 is a wasteful number, since it uses less digits than its factorization.

1252045106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63085.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1252045106 is about 35384.2494056324. The cubic root of 1252045106 is about 1077.8044978965.

Adding to 1252045106 its reverse (6015402521), we get a palindrome (7267447627).

The spelling of 1252045106 in words is "one billion, two hundred fifty-two million, forty-five thousand, one hundred six".