103638457 has 4 divisors (see below), whose sum is σ = 111610660. Its totient is φ = 95666256.

The previous prime is 103638427. The next prime is 103638463. The reversal of 103638457 is 754836301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7284601 + 96353856 = 2699^2 + 9816^2 .

It is a cyclic number.

It is not a de Polignac number, because 103638457 - 2²³ = 95249849 is a prime.

It is a super-3 number, since 3×103638457³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103638427) 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, 3986082 + ... + 3986107.

It is an arithmetic number, because the mean of its divisors is an integer number (27902665).

Almost surely, 2^103638457 is an apocalyptic number.

It is an amenable number.

103638457 is a deficient number, since it is larger than the sum of its proper divisors (7972203).

103638457 is an equidigital number, since it uses as much as digits as its factorization.

103638457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7972202.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 103638457 is about 10180.2974907416. The cubic root of 103638457 is about 469.7213634398.

It can be divided in two parts, 1036 and 38457, that added together give a palindrome (39493).

The spelling of 103638457 in words is "one hundred three million, six hundred thirty-eight thousand, four hundred fifty-seven".