2155200107 has 2 divisors, whose sum is σ = 2155200108. Its totient is φ = 2155200106.

The previous prime is 2155200083. The next prime is 2155200121. The reversal of 2155200107 is 7010025512.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2155200107 - 2²⁸ = 1886764651 is a prime.

It is a super-2 number, since 2×2155200107² = 9289775002425622898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2155200167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077600053 + 1077600054.

It is an arithmetic number, because the mean of its divisors is an integer number (1077600054).

Almost surely, 2^2155200107 is an apocalyptic number.

2155200107 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155200107 is an equidigital number, since it uses as much as digits as its factorization.

2155200107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 2155200107 is about 46424.1328082712. The cubic root of 2155200107 is about 1291.7025987109.

Adding to 2155200107 its reverse (7010025512), we get a palindrome (9165225619).

The spelling of 2155200107 in words is "two billion, one hundred fifty-five million, two hundred thousand, one hundred seven".