103581197 has 2 divisors, whose sum is σ = 103581198. Its totient is φ = 103581196.

The previous prime is 103581169. The next prime is 103581209. The reversal of 103581197 is 791185301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103103716 + 477481 = 10154^2 + 691^2 .

It is an emirp because it is prime and its reverse (791185301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103581197 - 2¹⁶ = 103515661 is a prime.

It is a super-3 number, since 3×103581197³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103584197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51790598 + 51790599.

It is an arithmetic number, because the mean of its divisors is an integer number (51790599).

Almost surely, 2^103581197 is an apocalyptic number.

It is an amenable number.

103581197 is a deficient number, since it is larger than the sum of its proper divisors (1).

103581197 is an equidigital number, since it uses as much as digits as its factorization.

103581197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 103581197 is about 10177.4848071613. The cubic root of 103581197 is about 469.6348408595.

The spelling of 103581197 in words is "one hundred three million, five hundred eighty-one thousand, one hundred ninety-seven".