109061551 has 2 divisors, whose sum is σ = 109061552. Its totient is φ = 109061550.

The previous prime is 109061549. The next prime is 109061567. The reversal of 109061551 is 155160901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109061551 - 2¹ = 109061549 is a prime.

Together with 109061549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109061531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54530775 + 54530776.

It is an arithmetic number, because the mean of its divisors is an integer number (54530776).

Almost surely, 2^109061551 is an apocalyptic number.

109061551 is a deficient number, since it is larger than the sum of its proper divisors (1).

109061551 is an equidigital number, since it uses as much as digits as its factorization.

109061551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 109061551 is about 10443.2538511711. The cubic root of 109061551 is about 477.7755156414.

The spelling of 109061551 in words is "one hundred nine million, sixty-one thousand, five hundred fifty-one".