103145557 has 2 divisors, whose sum is σ = 103145558. Its totient is φ = 103145556.

The previous prime is 103145551. The next prime is 103145563. The reversal of 103145557 is 755541301.

It is a balanced prime because it is at equal distance from previous prime (103145551) and next prime (103145563).

It can be written as a sum of positive squares in only one way, i.e., 79584241 + 23561316 = 8921^2 + 4854^2 .

It is a cyclic number.

It is not a de Polignac number, because 103145557 - 2⁷ = 103145429 is a prime.

It is equal to p_5932174 and since 103145557 and 5932174 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103145551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51572778 + 51572779.

It is an arithmetic number, because the mean of its divisors is an integer number (51572779).

Almost surely, 2^103145557 is an apocalyptic number.

It is an amenable number.

103145557 is a deficient number, since it is larger than the sum of its proper divisors (1).

103145557 is an equidigital number, since it uses as much as digits as its factorization.

103145557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 103145557 is about 10156.0601120710. The cubic root of 103145557 is about 468.9755216560.

Adding to 103145557 its reverse (755541301), we get a palindrome (858686858).

The spelling of 103145557 in words is "one hundred three million, one hundred forty-five thousand, five hundred fifty-seven".