105616551 has 8 divisors (see below), whose sum is σ = 140926464. Its totient is φ = 70358840.

The previous prime is 105616519. The next prime is 105616561. The reversal of 105616551 is 155616501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105616551 - 2⁵ = 105616519 is a prime.

It is a super-2 number, since 2×105616551² = 22309711690271202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105616501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8055 + ... + 16616.

It is an arithmetic number, because the mean of its divisors is an integer number (17615808).

Almost surely, 2^105616551 is an apocalyptic number.

105616551 is a deficient number, since it is larger than the sum of its proper divisors (35309913).

105616551 is a wasteful number, since it uses less digits than its factorization.

105616551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26101.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 105616551 is about 10276.9913398815. The cubic root of 105616551 is about 472.6909930256.

The spelling of 105616551 in words is "one hundred five million, six hundred sixteen thousand, five hundred fifty-one".