103814509 has 4 divisors (see below), whose sum is σ = 104128480. Its totient is φ = 103500540.

The previous prime is 103814471. The next prime is 103814527. The reversal of 103814509 is 905418301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103814509 - 2¹¹ = 103812461 is a prime.

It is a super-2 number, since 2×103814509² = 21554904557822162, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103814609) 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, 156489 + ... + 157150.

It is an arithmetic number, because the mean of its divisors is an integer number (26032120).

Almost surely, 2^103814509 is an apocalyptic number.

It is an amenable number.

103814509 is a deficient number, since it is larger than the sum of its proper divisors (313971).

103814509 is an equidigital number, since it uses as much as digits as its factorization.

103814509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313970.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 103814509 is about 10188.9405239210. The cubic root of 103814509 is about 469.9871869149.

The spelling of 103814509 in words is "one hundred three million, eight hundred fourteen thousand, five hundred nine".