1011503745 has 24 divisors (see below), whose sum is σ = 2003741376. Its totient is φ = 462401568.

The previous prime is 1011503737. The next prime is 1011503777. The reversal of 1011503745 is 5473051101.

It is not a de Polignac number, because 1011503745 - 2³ = 1011503737 is a prime.

It is a super-2 number, since 2×1011503745² = 2046279652298050050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1605247 + ... + 1605876.

It is an arithmetic number, because the mean of its divisors is an integer number (83489224).

Almost surely, 2^1011503745 is an apocalyptic number.

1011503745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011503745 is a deficient number, since it is larger than the sum of its proper divisors (992237631).

1011503745 is a wasteful number, since it uses less digits than its factorization.

1011503745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3211141 (or 3211138 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 1011503745 is about 31804.1466636035. The cubic root of 1011503745 is about 1003.8199709084.

Adding to 1011503745 its reverse (5473051101), we get a palindrome (6484554846).

The spelling of 1011503745 in words is "one billion, eleven million, five hundred three thousand, seven hundred forty-five".