109081251 has 12 divisors (see below), whose sum is σ = 157667328. Its totient is φ = 72672144.

The previous prime is 109081241. The next prime is 109081309. The reversal of 109081251 is 152180901.

It is not a de Polignac number, because 109081251 - 2⁶ = 109081187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109081201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14686 + ... + 20828.

It is an arithmetic number, because the mean of its divisors is an integer number (13138944).

Almost surely, 2^109081251 is an apocalyptic number.

109081251 is a deficient number, since it is larger than the sum of its proper divisors (48586077).

109081251 is a wasteful number, since it uses less digits than its factorization.

109081251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8122 (or 8119 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 109081251 is about 10444.1970012060. The cubic root of 109081251 is about 477.8042810829.

The spelling of 109081251 in words is "one hundred nine million, eighty-one thousand, two hundred fifty-one".