103512641 has 4 divisors (see below), whose sum is σ = 104054784. Its totient is φ = 102970500.

The previous prime is 103512601. The next prime is 103512649. The reversal of 103512641 is 146215301.

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-103512641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103512649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270785 + ... + 271166.

It is an arithmetic number, because the mean of its divisors is an integer number (26013696).

Almost surely, 2^103512641 is an apocalyptic number.

It is an amenable number.

103512641 is a deficient number, since it is larger than the sum of its proper divisors (542143).

103512641 is an equidigital number, since it uses as much as digits as its factorization.

103512641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542142.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 103512641 is about 10174.1162269752. The cubic root of 103512641 is about 469.5312075335.

Adding to 103512641 its reverse (146215301), we get a palindrome (249727942).

The spelling of 103512641 in words is "one hundred three million, five hundred twelve thousand, six hundred forty-one".