109144531 has 8 divisors (see below), whose sum is σ = 114987600. Its totient is φ = 103311360.

The previous prime is 109144523. The next prime is 109144547. The reversal of 109144531 is 135441901.

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

It is not a de Polignac number, because 109144531 - 2³ = 109144523 is a prime.

It is a super-2 number, since 2×109144531² = 23825057294419922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109144531.

It is not an unprimeable number, because it can be changed into a prime (109114531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34371 + ... + 37411.

It is an arithmetic number, because the mean of its divisors is an integer number (14373450).

Almost surely, 2^109144531 is an apocalyptic number.

109144531 is a deficient number, since it is larger than the sum of its proper divisors (5843069).

109144531 is a wasteful number, since it uses less digits than its factorization.

109144531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4949.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 109144531 is about 10447.2259954497. The cubic root of 109144531 is about 477.8966575143.

The spelling of 109144531 in words is "one hundred nine million, one hundred forty-four thousand, five hundred thirty-one".