109051521 has 16 divisors (see below), whose sum is σ = 152002560. Its totient is φ = 69460560.

The previous prime is 109051519. The next prime is 109051541. The reversal of 109051521 is 125150901.

It is not a de Polignac number, because 109051521 - 2¹ = 109051519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109051491 and 109051500.

It is not an unprimeable number, because it can be changed into a prime (109051541) 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, 75 + ... + 14768.

It is an arithmetic number, because the mean of its divisors is an integer number (9500160).

Almost surely, 2^109051521 is an apocalyptic number.

It is an amenable number.

109051521 is a deficient number, since it is larger than the sum of its proper divisors (42951039).

109051521 is a wasteful number, since it uses less digits than its factorization.

109051521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14956.

The product of its (nonzero) digits is 450, while the sum is 24.

The square root of 109051521 is about 10442.7736258142. The cubic root of 109051521 is about 477.7608687584.

The spelling of 109051521 in words is "one hundred nine million, fifty-one thousand, five hundred twenty-one".