103212045 has 24 divisors (see below), whose sum is σ = 179347896. Its totient is φ = 54908928.

The previous prime is 103212037. The next prime is 103212059. The reversal of 103212045 is 540212301.

It can be written as a sum of positive squares in 4 ways, for example, as 7387524 + 95824521 = 2718^2 + 9789^2 .

It is not a de Polignac number, because 103212045 - 2³ = 103212037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16837 + ... + 22133.

It is an arithmetic number, because the mean of its divisors is an integer number (7472829).

Almost surely, 2^103212045 is an apocalyptic number.

103212045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103212045 is a deficient number, since it is larger than the sum of its proper divisors (76135851).

103212045 is a wasteful number, since it uses less digits than its factorization.

103212045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5741 (or 5738 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 103212045 is about 10159.3329013277. The cubic root of 103212045 is about 469.0762677859.

Adding to 103212045 its reverse (540212301), we get a palindrome (643424346).

The spelling of 103212045 in words is "one hundred three million, two hundred twelve thousand, forty-five".