109051551 has 24 divisors (see below), whose sum is σ = 180477440. Its totient is φ = 62157456.

The previous prime is 109051541. The next prime is 109051567. The reversal of 109051551 is 155150901.

109051551 is a `hidden beast` number, since 10 + 90 + 515 + 51 = 666.

It is not a de Polignac number, because 109051551 - 2⁵ = 109051519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109051541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25686 + ... + 29628.

Almost surely, 2^109051551 is an apocalyptic number.

109051551 is a deficient number, since it is larger than the sum of its proper divisors (71425889).

109051551 is a wasteful number, since it uses less digits than its factorization.

109051551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4395 (or 4392 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 27.

The square root of 109051551 is about 10442.7750622141. The cubic root of 109051551 is about 477.7609125690.

The spelling of 109051551 in words is "one hundred nine million, fifty-one thousand, five hundred fifty-one".