1045451253 has 64 divisors (see below), whose sum is σ = 1773103104. Its totient is φ = 536659200.

The previous prime is 1045451219. The next prime is 1045451257. The reversal of 1045451253 is 3521545401.

It is not a de Polignac number, because 1045451253 - 2¹⁰ = 1045450229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1045451253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045451257) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3158298 + ... + 3158628.

It is an arithmetic number, because the mean of its divisors is an integer number (27704736).

Almost surely, 2^1045451253 is an apocalyptic number.

It is an amenable number.

1045451253 is a deficient number, since it is larger than the sum of its proper divisors (727651851).

1045451253 is a wasteful number, since it uses less digits than its factorization.

1045451253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1045451253 is about 32333.4386201035. The cubic root of 1045451253 is about 1014.9265084664.

Adding to 1045451253 its reverse (3521545401), we get a palindrome (4566996654).

The spelling of 1045451253 in words is "one billion, forty-five million, four hundred fifty-one thousand, two hundred fifty-three".