109595491 has 2 divisors, whose sum is σ = 109595492. Its totient is φ = 109595490.

The previous prime is 109595471. The next prime is 109595503. The reversal of 109595491 is 194595901.

It is a strong prime.

It is an emirp because it is prime and its reverse (194595901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109595491 - 2¹⁵ = 109562723 is a prime.

It is a super-2 number, since 2×109595491² = 24022343295062162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (109595461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54797745 + 54797746.

It is an arithmetic number, because the mean of its divisors is an integer number (54797746).

Almost surely, 2^109595491 is an apocalyptic number.

109595491 is a deficient number, since it is larger than the sum of its proper divisors (1).

109595491 is an equidigital number, since it uses as much as digits as its factorization.

109595491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72900, while the sum is 43.

The square root of 109595491 is about 10468.7865103841. The cubic root of 109595491 is about 478.5539393114.

The spelling of 109595491 in words is "one hundred nine million, five hundred ninety-five thousand, four hundred ninety-one".