103512557 has 2 divisors, whose sum is σ = 103512558. Its totient is φ = 103512556.

The previous prime is 103512527. The next prime is 103512559. The reversal of 103512557 is 755215301.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101989801 + 1522756 = 10099^2 + 1234^2 .

It is a cyclic number.

It is not a de Polignac number, because 103512557 - 2¹⁶ = 103447021 is a prime.

Together with 103512559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103512559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51756278 + 51756279.

It is an arithmetic number, because the mean of its divisors is an integer number (51756279).

Almost surely, 2^103512557 is an apocalyptic number.

It is an amenable number.

103512557 is a deficient number, since it is larger than the sum of its proper divisors (1).

103512557 is an equidigital number, since it uses as much as digits as its factorization.

103512557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 103512557 is about 10174.1120988517. The cubic root of 103512557 is about 469.5310805260.

Adding to 103512557 its reverse (755215301), we get a palindrome (858727858).

The spelling of 103512557 in words is "one hundred three million, five hundred twelve thousand, five hundred fifty-seven".