109086257 has 4 divisors (see below), whose sum is σ = 124670016. Its totient is φ = 93502500.

The previous prime is 109086253. The next prime is 109086259. The reversal of 109086257 is 752680901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 109086257 - 2² = 109086253 is a prime.

It is a super-2 number, since 2×109086257² = 23799622932540098, 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 109086257.

It is not an unprimeable number, because it can be changed into a prime (109086253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7791869 + ... + 7791882.

It is an arithmetic number, because the mean of its divisors is an integer number (31167504).

Almost surely, 2^109086257 is an apocalyptic number.

It is an amenable number.

109086257 is a deficient number, since it is larger than the sum of its proper divisors (15583759).

109086257 is an equidigital number, since it uses as much as digits as its factorization.

109086257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15583758.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 109086257 is about 10444.4366530704. The cubic root of 109086257 is about 477.8115901656.

The spelling of 109086257 in words is "one hundred nine million, eighty-six thousand, two hundred fifty-seven".