1012540503 has 8 divisors (see below), whose sum is σ = 1453904368. Its totient is φ = 623101824.

The previous prime is 1012540471. The next prime is 1012540513. The reversal of 1012540503 is 3050452101.

1012540503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1012540503 - 2⁵ = 1012540471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012540503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012540513) 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, 12981250 + ... + 12981327.

It is an arithmetic number, because the mean of its divisors is an integer number (181738046).

Almost surely, 2^1012540503 is an apocalyptic number.

1012540503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1012540503 is a deficient number, since it is larger than the sum of its proper divisors (441363865).

1012540503 is a wasteful number, since it uses less digits than its factorization.

1012540503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25962593.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1012540503 is about 31820.4415902734. The cubic root of 1012540503 is about 1004.1628145955.

Adding to 1012540503 its reverse (3050452101), we get a palindrome (4062992604).

The spelling of 1012540503 in words is "one billion, twelve million, five hundred forty thousand, five hundred three".