103638507 has 8 divisors (see below), whose sum is σ = 157925376. Its totient is φ = 59221992.

The previous prime is 103638473. The next prime is 103638527. The reversal of 103638507 is 705836301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103638507 - 2¹⁰ = 103637483 is a prime.

It is a super-3 number, since 3×103638507³ (a number of 25 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (103638527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2467563 + ... + 2467604.

It is an arithmetic number, because the mean of its divisors is an integer number (19740672).

Almost surely, 2^103638507 is an apocalyptic number.

103638507 is a deficient number, since it is larger than the sum of its proper divisors (54286869).

103638507 is an equidigital number, since it uses as much as digits as its factorization.

103638507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4935177.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 103638507 is about 10180.2999464652. The cubic root of 103638507 is about 469.7214389783.

The spelling of 103638507 in words is "one hundred three million, six hundred thirty-eight thousand, five hundred seven".