1045111251 has 16 divisors (see below), whose sum is σ = 1442972160. Its totient is φ = 672043680.

The previous prime is 1045111219. The next prime is 1045111273. The reversal of 1045111251 is 1521115401.

It is not a de Polignac number, because 1045111251 - 2⁵ = 1045111219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1045111351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90516 + ... + 101406.

It is an arithmetic number, because the mean of its divisors is an integer number (90185760).

Almost surely, 2^1045111251 is an apocalyptic number.

1045111251 is a deficient number, since it is larger than the sum of its proper divisors (397860909).

1045111251 is a wasteful number, since it uses less digits than its factorization.

1045111251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12026.

The product of its (nonzero) digits is 200, while the sum is 21.

The square root of 1045111251 is about 32328.1804467867. The cubic root of 1045111251 is about 1014.8164716259.

Adding to 1045111251 its reverse (1521115401), we get a palindrome (2566226652).

The spelling of 1045111251 in words is "one billion, forty-five million, one hundred eleven thousand, two hundred fifty-one".