103664557 has 2 divisors, whose sum is σ = 103664558. Its totient is φ = 103664556.

The previous prime is 103664543. The next prime is 103664567. The reversal of 103664557 is 755466301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73513476 + 30151081 = 8574^2 + 5491^2 .

It is an emirp because it is prime and its reverse (755466301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103664557 - 2¹¹ = 103662509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103664507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51832278 + 51832279.

It is an arithmetic number, because the mean of its divisors is an integer number (51832279).

Almost surely, 2^103664557 is an apocalyptic number.

It is an amenable number.

103664557 is a deficient number, since it is larger than the sum of its proper divisors (1).

103664557 is an equidigital number, since it uses as much as digits as its factorization.

103664557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 103664557 is about 10181.5792979282. The cubic root of 103664557 is about 469.7607912061.

The spelling of 103664557 in words is "one hundred three million, six hundred sixty-four thousand, five hundred fifty-seven".