109451387 has 2 divisors, whose sum is σ = 109451388. Its totient is φ = 109451386.

The previous prime is 109451371. The next prime is 109451429. The reversal of 109451387 is 783154901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109451387 - 2⁴ = 109451371 is a prime.

It is a super-2 number, since 2×109451387² = 23959212232447538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 109451387.

It is not a weakly prime, because it can be changed into another prime (109451317) 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 as a sum of consecutive naturals, namely, 54725693 + 54725694.

It is an arithmetic number, because the mean of its divisors is an integer number (54725694).

Almost surely, 2^109451387 is an apocalyptic number.

109451387 is a deficient number, since it is larger than the sum of its proper divisors (1).

109451387 is an equidigital number, since it uses as much as digits as its factorization.

109451387 is an odious number, because the sum of its binary digits is odd.

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

The square root of 109451387 is about 10461.9016913752. The cubic root of 109451387 is about 478.3441016514.

The spelling of 109451387 in words is "one hundred nine million, four hundred fifty-one thousand, three hundred eighty-seven".