103212097 has 4 divisors (see below), whose sum is σ = 103251796. Its totient is φ = 103172400.

The previous prime is 103212071. The next prime is 103212103. The reversal of 103212097 is 790212301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31708161 + 71503936 = 5631^2 + 8456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103212097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103212037) 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 in 3 ways as a sum of consecutive naturals, for example, 15654 + ... + 21247.

It is an arithmetic number, because the mean of its divisors is an integer number (25812949).

Almost surely, 2^103212097 is an apocalyptic number.

It is an amenable number.

103212097 is a deficient number, since it is larger than the sum of its proper divisors (39699).

103212097 is an equidigital number, since it uses as much as digits as its factorization.

103212097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39698.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 103212097 is about 10159.3354605506. The cubic root of 103212097 is about 469.0763465621.

Adding to 103212097 its reverse (790212301), we get a palindrome (893424398).

The spelling of 103212097 in words is "one hundred three million, two hundred twelve thousand, ninety-seven".