1252111036 has 24 divisors (see below), whose sum is σ = 2395617840. Its totient is φ = 567897600.

The previous prime is 1252111033. The next prime is 1252111073. The reversal of 1252111036 is 6301112521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1252110998 and 1252111016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252111033) 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, 10581 + ... + 51148.

It is an arithmetic number, because the mean of its divisors is an integer number (99817410).

Almost surely, 2^1252111036 is an apocalyptic number.

It is an amenable number.

1252111036 is a deficient number, since it is larger than the sum of its proper divisors (1143506804).

1252111036 is a wasteful number, since it uses less digits than its factorization.

1252111036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62205 (or 62203 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1252111036 is about 35385.1810225693. The cubic root of 1252111036 is about 1077.8234158526.

Adding to 1252111036 its reverse (6301112521), we get a palindrome (7553223557).

The spelling of 1252111036 in words is "one billion, two hundred fifty-two million, one hundred eleven thousand, thirty-six".