105672551 has 2 divisors, whose sum is σ = 105672552. Its totient is φ = 105672550.

The previous prime is 105672517. The next prime is 105672559. The reversal of 105672551 is 155276501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105672551 - 2¹⁸ = 105410407 is a prime.

It is a super-2 number, since 2×105672551² = 22333376069695202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105672559) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52836275 + 52836276.

It is an arithmetic number, because the mean of its divisors is an integer number (52836276).

Almost surely, 2^105672551 is an apocalyptic number.

105672551 is a deficient number, since it is larger than the sum of its proper divisors (1).

105672551 is an equidigital number, since it uses as much as digits as its factorization.

105672551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10500, while the sum is 32.

The square root of 105672551 is about 10279.7155116277. The cubic root of 105672551 is about 472.7745216591.

The spelling of 105672551 in words is "one hundred five million, six hundred seventy-two thousand, five hundred fifty-one".