103212507 has 8 divisors (see below), whose sum is σ = 137664576. Its totient is φ = 68784392.

The previous prime is 103212493. The next prime is 103212563. The reversal of 103212507 is 705212301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103212507 - 2⁶ = 103212443 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (103212407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10768 + ... + 17954.

It is an arithmetic number, because the mean of its divisors is an integer number (17208072).

Almost surely, 2^103212507 is an apocalyptic number.

103212507 is a deficient number, since it is larger than the sum of its proper divisors (34452069).

103212507 is an equidigital number, since it uses as much as digits as its factorization.

103212507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11977.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 103212507 is about 10159.3556390157. The cubic root of 103212507 is about 469.0769676813.

Adding to 103212507 its sum of digits (21), we get a triangular number (103212528 = T₁₄₃₆₇).

Adding to 103212507 its reverse (705212301), we get a palindrome (808424808).

The spelling of 103212507 in words is "one hundred three million, two hundred twelve thousand, five hundred seven".