100561667 has 2 divisors, whose sum is σ = 100561668. Its totient is φ = 100561666.

The previous prime is 100561639. The next prime is 100561687. The reversal of 100561667 is 766165001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100561667 - 2⁸ = 100561411 is a prime.

It is a super-2 number, since 2×100561667² = 20225297739637778, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100561607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50280833 + 50280834.

It is an arithmetic number, because the mean of its divisors is an integer number (50280834).

Almost surely, 2^100561667 is an apocalyptic number.

100561667 is a deficient number, since it is larger than the sum of its proper divisors (1).

100561667 is an equidigital number, since it uses as much as digits as its factorization.

100561667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 100561667 is about 10028.0440266285. The cubic root of 100561667 is about 465.0262705318.

The spelling of 100561667 in words is "one hundred million, five hundred sixty-one thousand, six hundred sixty-seven".