103212525 has 72 divisors (see below), whose sum is σ = 196058880. Its totient is φ = 47723520.

The previous prime is 103212493. The next prime is 103212563. The reversal of 103212525 is 525212301.

It is not a de Polignac number, because 103212525 - 2⁵ = 103212493 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 215236 + ... + 215714.

It is an arithmetic number, because the mean of its divisors is an integer number (2723040).

Almost surely, 2^103212525 is an apocalyptic number.

103212525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103212525 is a deficient number, since it is larger than the sum of its proper divisors (92846355).

103212525 is a wasteful number, since it uses less digits than its factorization.

103212525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 103212525 is about 10159.3565248986. The cubic root of 103212525 is about 469.0769949499.

Adding to 103212525 its reverse (525212301), we get a palindrome (628424826).

The spelling of 103212525 in words is "one hundred three million, two hundred twelve thousand, five hundred twenty-five".