105551451 has 16 divisors (see below), whose sum is σ = 157428000. Its totient is φ = 69892704.

The previous prime is 105551449. The next prime is 105551471. The reversal of 105551451 is 154155501.

105551451 is a `hidden beast` number, since 105 + 551 + 4 + 5 + 1 = 666.

It is not a de Polignac number, because 105551451 - 2¹ = 105551449 is a prime.

It is a super-2 number, since 2×105551451² = 22282217616410802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (105551471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9096 + ... + 17141.

It is an arithmetic number, because the mean of its divisors is an integer number (9839250).

Almost surely, 2^105551451 is an apocalyptic number.

105551451 is a deficient number, since it is larger than the sum of its proper divisors (51876549).

105551451 is a wasteful number, since it uses less digits than its factorization.

105551451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26395 (or 26389 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The square root of 105551451 is about 10273.8235822891. The cubic root of 105551451 is about 472.5938538683.

The spelling of 105551451 in words is "one hundred five million, five hundred fifty-one thousand, four hundred fifty-one".