133103971 has 16 divisors (see below), whose sum is σ = 178714368. Its totient is φ = 95738400.

The previous prime is 133103969. The next prime is 133103977. The reversal of 133103971 is 179301331.

It is a cyclic number.

It is not a de Polignac number, because 133103971 - 2¹ = 133103969 is a prime.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (133103977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65485 + ... + 67486.

It is an arithmetic number, because the mean of its divisors is an integer number (11169648).

Almost surely, 2^133103971 is an apocalyptic number.

133103971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133103971 is a deficient number, since it is larger than the sum of its proper divisors (45610397).

133103971 is a wasteful number, since it uses less digits than its factorization.

133103971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133002.

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 133103971 is about 11537.0694285854. The cubic root of 133103971 is about 510.5798492638.

The spelling of 133103971 in words is "one hundred thirty-three million, one hundred three thousand, nine hundred seventy-one".