1045012251 has 8 divisors (see below), whose sum is σ = 1393499200. Its totient is φ = 696600072.

The previous prime is 1045012249. The next prime is 1045012259. The reversal of 1045012251 is 1522105401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1045012251 - 2¹ = 1045012249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045012259) 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, 43200 + ... + 62898.

It is an arithmetic number, because the mean of its divisors is an integer number (174187400).

Almost surely, 2^1045012251 is an apocalyptic number.

1045012251 is a deficient number, since it is larger than the sum of its proper divisors (348486949).

1045012251 is a wasteful number, since it uses less digits than its factorization.

1045012251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37385.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1045012251 is about 32326.6492386699. The cubic root of 1045012251 is about 1014.7844271895.

Adding to 1045012251 its reverse (1522105401), we get a palindrome (2567117652).

The spelling of 1045012251 in words is "one billion, forty-five million, twelve thousand, two hundred fifty-one".