103621413 has 32 divisors (see below), whose sum is σ = 162176256. Its totient is φ = 57627648.

The previous prime is 103621411. The next prime is 103621429. The reversal of 103621413 is 314126301.

It is not a de Polignac number, because 103621413 - 2¹ = 103621411 is a prime.

It is a super-3 number, since 3×103621413³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 103621413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103621411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174445 + ... + 175037.

It is an arithmetic number, because the mean of its divisors is an integer number (5068008).

Almost surely, 2^103621413 is an apocalyptic number.

It is an amenable number.

103621413 is a deficient number, since it is larger than the sum of its proper divisors (58554843).

103621413 is a wasteful number, since it uses less digits than its factorization.

103621413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 103621413 is about 10179.4603491541. The cubic root of 103621413 is about 469.6956124781.

Adding to 103621413 its reverse (314126301), we get a palindrome (417747714).

The spelling of 103621413 in words is "one hundred three million, six hundred twenty-one thousand, four hundred thirteen".