109531471 has 8 divisors (see below), whose sum is σ = 125623424. Its totient is φ = 93550680.

The previous prime is 109531469. The next prime is 109531481. The reversal of 109531471 is 174135901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109531471 - 2¹ = 109531469 is a prime.

It is a super-3 number, since 3×109531471³ (a number of 25 digits) contains 333 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 (109531481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25665 + ... + 29626.

It is an arithmetic number, because the mean of its divisors is an integer number (15702928).

Almost surely, 2^109531471 is an apocalyptic number.

109531471 is a deficient number, since it is larger than the sum of its proper divisors (16091953).

109531471 is an equidigital number, since it uses as much as digits as its factorization.

109531471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55581.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 109531471 is about 10465.7284027439. The cubic root of 109531471 is about 478.4607390335.

The spelling of 109531471 in words is "one hundred nine million, five hundred thirty-one thousand, four hundred seventy-one".