103664951 has 4 divisors (see below), whose sum is σ = 111639192. Its totient is φ = 95690712.

The previous prime is 103664909. The next prime is 103664971. The reversal of 103664951 is 159466301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 159466301 = 313 ⋅509477.

It is not a de Polignac number, because 103664951 - 2²⁶ = 36556087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103664971) 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, 3987101 + ... + 3987126.

It is an arithmetic number, because the mean of its divisors is an integer number (27909798).

Almost surely, 2^103664951 is an apocalyptic number.

103664951 is a deficient number, since it is larger than the sum of its proper divisors (7974241).

103664951 is an equidigital number, since it uses as much as digits as its factorization.

103664951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7974240.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 103664951 is about 10181.5986465781. The cubic root of 103664951 is about 469.7613863485.

The spelling of 103664951 in words is "one hundred three million, six hundred sixty-four thousand, nine hundred fifty-one".