103631913 has 48 divisors (see below), whose sum is σ = 194857920. Its totient is φ = 53827200.

The previous prime is 103631911. The next prime is 103631921. The reversal of 103631913 is 319136301.

103631913 is a `hidden beast` number, since 10 + 3 + 631 + 9 + 13 = 666.

It is not a de Polignac number, because 103631913 - 2¹ = 103631911 is a prime.

It is a super-3 number, since 3×103631913³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (103631911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10993 + ... + 18113.

It is an arithmetic number, because the mean of its divisors is an integer number (4059540).

Almost surely, 2^103631913 is an apocalyptic number.

It is an amenable number.

103631913 is a deficient number, since it is larger than the sum of its proper divisors (91226007).

103631913 is a wasteful number, since it uses less digits than its factorization.

103631913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7155 (or 7142 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 103631913 is about 10179.9760805220. The cubic root of 103631913 is about 469.7114767582.

The spelling of 103631913 in words is "one hundred three million, six hundred thirty-one thousand, nine hundred thirteen".