103659431 has 4 divisors (see below), whose sum is σ = 104685864. Its totient is φ = 102633000.

The previous prime is 103659403. The next prime is 103659461. The reversal of 103659431 is 134956301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134956301 = 101 ⋅1336201.

It is a cyclic number.

It is not a de Polignac number, because 103659431 - 2¹⁴ = 103643047 is a prime.

It is a super-2 number, since 2×103659431² = 21490555270487522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103659461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513065 + ... + 513266.

It is an arithmetic number, because the mean of its divisors is an integer number (26171466).

Almost surely, 2^103659431 is an apocalyptic number.

103659431 is a deficient number, since it is larger than the sum of its proper divisors (1026433).

103659431 is a wasteful number, since it uses less digits than its factorization.

103659431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026432.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 103659431 is about 10181.3275656959. The cubic root of 103659431 is about 469.7530481755.

The spelling of 103659431 in words is "one hundred three million, six hundred fifty-nine thousand, four hundred thirty-one".