103551213 has 4 divisors (see below), whose sum is σ = 138068288. Its totient is φ = 69034140.

The previous prime is 103551209. The next prime is 103551251. The reversal of 103551213 is 312155301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 103551213 - 2² = 103551209 is a prime.

It is a super-3 number, since 3×103551213³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103551213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103551263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17258533 + ... + 17258538.

It is an arithmetic number, because the mean of its divisors is an integer number (34517072).

Almost surely, 2^103551213 is an apocalyptic number.

It is an amenable number.

103551213 is a deficient number, since it is larger than the sum of its proper divisors (34517075).

103551213 is an equidigital number, since it uses as much as digits as its factorization.

103551213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34517074.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 103551213 is about 10176.0116450405. The cubic root of 103551213 is about 469.5895208901.

The spelling of 103551213 in words is "one hundred three million, five hundred fifty-one thousand, two hundred thirteen".