100503061 has 4 divisors (see below), whose sum is σ = 102641472. Its totient is φ = 98364652.

The previous prime is 100503047. The next prime is 100503097. The reversal of 100503061 is 160305001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100503061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100503961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1069135 + ... + 1069228.

It is an arithmetic number, because the mean of its divisors is an integer number (25660368).

Almost surely, 2^100503061 is an apocalyptic number.

It is an amenable number.

100503061 is a deficient number, since it is larger than the sum of its proper divisors (2138411).

100503061 is an equidigital number, since it uses as much as digits as its factorization.

100503061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138410.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 100503061 is about 10025.1214955231. The cubic root of 100503061 is about 464.9359159384.

Adding to 100503061 its reverse (160305001), we get a palindrome (260808062).

The spelling of 100503061 in words is "one hundred million, five hundred three thousand, sixty-one".