1053145503 has 16 divisors (see below), whose sum is σ = 1561674240. Its totient is φ = 701440632.

The previous prime is 1053145501. The next prime is 1053145517. The reversal of 1053145503 is 3055413501.

1053145503 is a `hidden beast` number, since 10 + 5 + 3 + 145 + 503 = 666.

It is not a de Polignac number, because 1053145503 - 2¹ = 1053145501 is a prime.

It is a super-2 number, since 2×1053145503² = 2218230900978246018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053145501) 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, 12100 + ... + 47462.

It is an arithmetic number, because the mean of its divisors is an integer number (97604640).

Almost surely, 2^1053145503 is an apocalyptic number.

1053145503 is a deficient number, since it is larger than the sum of its proper divisors (508528737).

1053145503 is a wasteful number, since it uses less digits than its factorization.

1053145503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36475 (or 36469 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1053145503 is about 32452.2033612511. The cubic root of 1053145503 is about 1017.4102903319.

The spelling of 1053145503 in words is "one billion, fifty-three million, one hundred forty-five thousand, five hundred three".